How can you tell if a sideeffect is the result of Covid or the vaccination?

[Baitball Blogger]

Six weeks after receiving the Pfizer booster I began to experience dry mouth symptoms. It began at night, but it progressively became an issue during the day, when eating spicy food became uncomfortable.

I looked it up and it's called xerostomia and it affects 43% of Covid patients. Except, I've never had Covid. Never had a symptom that sent me to the doc for a test. The most likely explanation is that it's a sideeffect of the booster. For me, the effects of the booster was worse than the first two shots. I had a really bad headache and was achy, I couldn't eat for a day, but all the symptoms were gone by the third day.

Anyone else who has had a Pfizer booster have a similar reaction?

[JohnSJ]

1. why don't you bring it up to your physician. six weeks after the booster is a little late for a

side effect to show up

[Rebl2]

2. Only side

effect I had was I was a little more tired than usual for two days.

[relayerbob]

3. A more likely explanation is that you caught an unrelated, non-coronavirus bug

[BlackSkimmer]

4. I was very sick after my booster. But it hit me 24 hours later.

I’ve also had Covid.

But it was an awful side effect. Not sure I’ll take another booster, if it comes to that.

[W_HAMILTON]

5. If you are having "side effects" that long after receiving the booster...

...odds are it ain't from the booster.

[TreasonousBastard]

6. You tell by going to your doctor. I looked up dry mouth, too...

and it can have lots of causes. I suffer from it once and a while, too, but it usually has to do with my diabetes.

[Baitball Blogger]

7. Diabetes is a possiblity. But, again, no other symptoms.

I have an appointment to see my doc for my annual checkup. I'll get more answers then.

[Wingus Dingus]

8. I have horrendous dry mouth with what feels

like a minor rash inside mouth and/or swelling and soreness on tongue, I've had it since end of September--at the same time I also suspected I might have had Covid: runny nose, sneezing, diminished taste/smell--but never really felt sick or feverish or coughing. I wrote it off as allergies. Now you have me wondering. I'd never suffered from dry mouth before, it came on suddenly and is still bothering me months later. Edit to add: also considered diabetes, sjogrens, thrush, etc. but haven't gone for a checkup yet, it's finally starting to get better.

[Baitball Blogger]

9. It might be a long-haul symptom from Covid.

Check with your doctor. At least you know you had Covid.

[Wingus Dingus]

10. Well I don't know if I had it, just suspect it but no way

to prove it now. Should have gotten tested when I had the symptoms but I just never felt bad enough to worry about it. I got the booster a few weeks ago and my dry mouth is improved somewhat, so the vaccine didn't seem to matter.

[Maru Kitteh]

11. You don't test for yourself, you test so you know

what kind of threat you may pose to others.