Long COVID fatigue and crashes, improved then relapsed after switching antihistamines
- Condition
- Long COVID
- At worst
- Mild (working or studying, with limits)
- Ill before improving or writing
- 3 months
- Last post
- Aug 2023
In their words
- Condition: Long COVID
I've also felt long covid slowly going and then coming back worse after I've had a cold or other mischievous virus
In context ↗ - At worst: Mild
tried to push myself more by doing more physically like walking more or going into the office/travelling etc.
In context ↗ - Now: Relapsed
My fatigue has come back hardcore and I can't work out if it's related to other life changes or just the antihistamines aren't working anymore.
In context ↗ - Began after: COVID
was brought on by my last COVID infection (around 3 months ago)
Read from 9 of their posts and comments; links to the 6 this page draws on
Summary
A Reddit user developed long COVID after a COVID infection in mid-2022, with constant tiredness that flared into 24-hour crashes after activity. Over months they improved slightly, and antihistamines with a low-histamine diet and intermittent fasting brought a marked difference. After switching antihistamines in early 2023 the fatigue returned hard, and colds or other viruses had set them back; by their last post they reported a lactic acid deficiency and immediate help from supplements.
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What they tried
What they credit
Also tried
Their words about each treatment
- citalopram · Not said
I'm on citalopram and trying to work out if this is making the symptoms worse
In context ↗ - pushing myself more by doing more physically · Not said
tried to push myself more by doing more physically like walking more or going into the office/travelling etc.
In context ↗ - Fexofenadine · Helped a lot
I was taking Fexofenadine (180mg) a day for the last few months and I'm sure it worked quite effectively for the fatigue.
In context ↗ - avoiding high histamine food · Helped
I started the antihistamines, avoiding high histamine food and intermittent fasting around the same time so not sure which part of this has been the most effective.
In context ↗ - Intermittent fasting · Helped
Intermittent fasting seems to help.
In context ↗ - lactic acid supplement · Helped
I started taking supplements which included this and it helped immediately
In context ↗
Approaches: H1 antihistamines · Diet
Their path
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. 1 step says too little to place on the scale and is only in the table. The line stops at their last step that can be placed; how they are now is in the table. Dates are when they posted. What the levels mean.
Show as a table
| When | What happened | Where they were | After |
|---|---|---|---|
| about 3 months before October 2022 | long COVID after a COVID infectionAt first I had constant tirednessIn context ↗ | Mild | |
| 2022-10-04 | symptoms slightly improved, pushing activity moreas time went on my symptoms have slightly improved and tried to push myself more by doing more physically like walking more or going into the office/travelling etc.In context ↗ | Mild | |
| 2022-10-12 | histamine approach gave a massive differenceThe posts about histamines have been the most useful to me, I've noticed a massive differenceIn context ↗ | Mild | Fexofenadine (Allegra) |
| 2023-03-02 | switched from fexofenadine to loratadine and fatigue returnedMy fatigue has come back hardcoreIn context ↗ | Mild | |
| 2023-03-06 | long COVID came back worse after a cold or other virusI've also felt long covid slowly going and then coming back worse after I've had a cold or other mischievous virusIn context ↗ | Mild | |
| 2023-08-31 | lactic acid deficiency supplements cleared mouth ulcers immediatelyI actually found that a lactic acid deficiency was causing this and ulcers, I started taking supplements which included this and it helped immediatelyIn context ↗ | Not stated |
Adverse events
- Fexofenadine (Allegra)“I'd recently changed to Loratadine (taking 2 a day so 20mg) the last few weeks ... My fatigue has come back hardcore” In context ↗ Made symptoms worse
Symptoms mentioned
Their words about their symptoms
- Post-exertional malaise
my fatigue seems to go away for around a week or less/longer depending on how active I've been and then wham it comes back with a bang
In context ↗ - Sleep problems
I'm falling asleep at my computer and then I'm in bed for the next 24 hours
In context ↗
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