Miruvor
Sign up
Long COVID Mild → recoveredIll 6 months before improving or writing

Mild myocarditis with long COVID, now back to normal after antihistamines and breathing

Condition
Long COVID
At worst
Mild (working or studying, with limits)
Ill before improving or writing
6 months
Last post
Sep 2023
In their words
  • Condition: Long COVIDA week after covid, my doc gave me arcoxia (muscle relaxant) for my long lasting sacrum pain. In context ↗
  • At worst: MildI'll be drinking it during a morning meeting to lower heart rate while others are dying for their coffee In context ↗
  • Now: RecoveredAfter 6 months my blood values returned to normal. I felt normal again too and could function. In context ↗
  • Began after: COVIDA week after covid, my doc gave me arcoxia
Read from 6 of their posts and comments; links to the 5 this page draws on

Request to remove this story

Summary

After a COVID infection in 2022, Osprey 50837 developed heart pounding, jittery reactions and NSAID sensitivity later diagnosed as mild myocarditis. Antihistamines, quercetin, DAO, St John's Wort, omega-3 and Wim Hof breathing helped calm symptoms, though high-dose vitamin C triggered nervousness and insomnia. Blood markers normalised after about six months and they felt normal again, though four months after hydrocele surgery they still had groin swelling and back pain.

Ask Miruvor AI

Asking aboutOsprey 50837’s story

What they tried

Their words about each treatment
  • arcoxia · WorseAfter 2 days, I felt so jittery and nervous, my heart rate kept pounding and going up. In context ↗
  • dry needling · Worseit started another 2 days of nervous system activation In context ↗
  • zyrtec · HelpedBased on suggestions from the forum, taking zyrtec, quercetin, DAO, vit C, and drinking sweet rose tea, I've managed pretty well. In context ↗
  • quercetin · Helpedtaking zyrtec, quercetin, DAO, vit C, and drinking sweet rose tea, I've managed pretty well In context ↗
  • vit C · WorseHigh dose of Vitamin C triggers nervousness and insomnia, so cutting this out again. In context ↗
  • camomile and wild rose tea · HelpedI drank lots of camomile and wild rose tea (anti-histamine), which helped with calming down. In context ↗
  • daflon · Much worseBut took some daflon for hemmorrhoids and bam, feeling super unwell again. In context ↗
  • voltaren cream · Worseusing voltaren cream made we make up all throughout the night with 8-bpm, and lying in bed during the day with 80-90 heart beat In context ↗
  • Preparation-H - Phenylephrine · Worse- Preparation-H - Phenylephrine In context ↗
  • Ibuprofen (NSAID) · Worse- Ibuprofen (NSAID) In context ↗
  • Ginger creme · Worse- Ginger creme (for joints) In context ↗
  • corticosteroids · WorseI get 2 days of pounding heart and feeling unwell after I take any NSAID, and possibly some other medications like corticosteroids. In context ↗
  • Wim hof method · HelpedI found that Wim hof method helped for me. Covid can mess up the balance between sympathic and para nervous system. This can help regulate it In context ↗
  • St. Johns Wort · HelpedSupplements that felt helpful: St. Johns Wort (!), omega3, D3, heme In context ↗
  • heme · HelpedSupplements that felt helpful: St. Johns Wort (!), omega3, D3, heme (to stimulate p-450 pathway In context ↗
  • L-glutamine · Not saidI also took gut support L-glutamine, NAC, milk thistle, etc. although that felt less essential. In context ↗
  • surgery for the hydrocele · Not saidI had surgery for the hydrocele, which showed chronic inflammation and had showed up since covid. In context ↗
  • TUDCA · HelpedDoc had just prescribed TUDCA and IGgI Shield by accident. I think it helped protect me. In context ↗

Approaches: H1 antihistamines · Antihistamines & MCAS · Supplements

Their path

Very severeSevereModerateMildNear normalRecoveredonset3 mo6 mo9 mo

How ill they were on the ME/CFS severity scale, estimated from what they describe at each point, with time counted from when the illness began. Hover or tap a point. Dates are when they posted. What the levels mean.

Show as a table
WhenWhat happenedWhere they wereAfter
2022COVID infection, then long-lasting sacrum painA week after covid, my doc gave me arcoxia (muscle relaxant) for my long lasting sacrum pain. In context ↗Mild
2022-11heart pounding and nervous-system activation after NSAIDs and dry needlingusing voltaren cream made we make up all throughout the night with 8-bpm, and lying in bed during the day with 80-90 heart beat In context ↗Mild
2022-12managed better on antihistamines and supplementsBased on suggestions from the forum, taking zyrtec, quercetin, DAO, vit C, and drinking sweet rose tea, I've managed pretty well. In context ↗MildCetirizine (Zyrtec)
2023-04blood values normal, felt normal againAfter 6 months my blood values returned to normal. I felt normal again too and could function. In context ↗Recovered
2023-05hydrocele surgery, lingering groin swelling and back painFour months post-op I am still swollen in groin area and back pain not completely gone. In context ↗Mild
2023-09family COVID, gut pain and inflamed glutes mediusI got bad gut pain and inflamed glutes medius. Went away after 3-5 days. In context ↗Mild
2023-09no other symptoms, feels energeticNo other symptoms, I feel energetic. In context ↗Recovered

Adverse events

  • Etoricoxib (Arcoxia)“After 2 days, I felt so jittery and nervous, my heart rate kept pounding and going up.” In context ↗ Heart rhythm problems
  • Etoricoxib (Arcoxia)“After a few weeks of no coffee, I tried half dose of arcoxia again and same thing happened although slightly better manageable.” In context ↗ Heart rhythm problems
  • Dry needling“After a few days I visited an osteo who did dry needling on my glutes for my sacrum pain. And it started another 2 days of nervous system activation.” In context ↗ Made symptoms worse
  • Diosmin“But took some daflon for hemmorrhoids and bam, feeling super unwell again.” In context ↗ Made symptoms worse
  • Diclofenac (Voltaren, Cambia)“Even with all the supplements, using voltaren cream made we make up all throughout the night with 8-bpm, and lying in bed during the day with 80-90 heart beat.” In context ↗ Heart rhythm problems
  • Diclofenac (Voltaren, Cambia)“Even with all the supplements, using voltaren cream made we make up all throughout the night with 8-bpm, and lying in bed during the day with 80-90 heart beat.” In context ↗ Insomnia from treatment
  • Vitamin C“High dose of Vitamin C triggers nervousness and insomnia, so cutting this out again.” In context ↗ Mood or psychiatric effects
  • Vitamin C“High dose of Vitamin C triggers nervousness and insomnia, so cutting this out again.” In context ↗ Insomnia from treatment
  • Etoricoxib (Arcoxia)“I get 2 days of pounding heart and feeling unwell after I take any NSAID” In context ↗ Heart rhythm problems

Symptoms mentioned

Their words about their symptoms
  • Heart symptoms & palpitationsmy heart rate kept pounding and going up In context ↗
  • Anxiety & low moodI felt so jittery and nervous In context ↗
  • Brain fogWhen it happens I cannot think, I want to shake. In context ↗
  • Sleep problemsusing voltaren cream made we make up all throughout the night with 8-bpm In context ↗
  • Gut problemsI got bad gut pain and inflamed glutes medius. In context ↗
  • Pain & fibromyalgiamy long lasting sacrum pain In context ↗
  • Mast cell (MCAS) & allergiesstill the slightest stimulant or NSAD kicks in the heart pounding In context ↗

Ask Miruvor AI

Asking aboutOsprey 50837’s story

Similar stories

  • Not enough detail to draw a path

    Long COVID burning skin and food reactions, nearly normal while on antihistamines and diet

    Near normal Harbor 69694 Long COVID Moderate at worstIll 9 months before improving or writing reddit.com Apr 2025

    Two weeks after a Pfizer booster in January 2022 they developed sun sensitivity and burning skin, mainly on the face, followed by food and medication reactions; some drugs and supplements later caused heart-rate elevation. H1/H2 antihistamines and a…

  • Partly bedbound with long COVID, now much better after low-histamine diet and supplements

    Much better Kestrel 61314 Long COVID Moderate at worstIll 5 months before improving or writing reddit.com Oct 2026

    Long COVID began in December 2023 after a mild infection, with constant depersonalisation, panic attacks, insomnia and breathlessness; at worst suicidal; partly bedbound from PEM. A strict low-histamine diet, cold showers, breathing work, yoga nidra and…

  • Not enough detail to draw a path

    Long COVID with 50-plus symptoms; improved then relapsed after supplements, antihistamines

    Relapsed Rain 56692 Long COVID Mild at worstIll 2.5 years before improving or writing reddit.com Oct 2026

    A chiropractor fell ill in 2021 and developed 50-plus daily symptoms, including full-body neuralgia, dysautonomia, dementia-like cognitive loss and heat intolerance, severe for about two years; he kept working throughout. He credits self-directed…

  • Not enough detail to draw a path

    Severe long COVID with burning head symptoms, now around 90% after glycine and NAC

    Near normal Mesa 43715 Long COVID Moderate at worstIll 13 months before improving or writing reddit.com Sep 2026

    Mesa 43715, a 39-year-old man, got long COVID in May 2023 and became severe months later after doxycycline, with burning head symptoms. An SSRI eased the neuro-inflammation; from June 2024 high-dose glycine and NAC stopped his PEM within weeks; he also took…

A little hope, every Sunday

New recovery stories and data-driven research on ME/CFS and long COVID. Ideas worth considering, and the evidence behind them.

Free · Unsubscribe anytime