I have never had any issues with the Pfizer shot. I have always stayed for the 15 minutes after the Covid shot has been completed just to be sure that all is well.

Not that I have ever experienced, and I just had this most recently developed one the week after it came out. It does seem to depend on the person and maybe their medications, but I am not certain of anything. All I know is it was painless for me.

It will vary from person to person. Medications affect everyone differently. Here is a link if you are interested, https://www.verywellhealth.com/epilepsy-and-cov...(Phone number can only be seen by the question and answer creators)

I take Lacosamide and had no effects with covid, flu or rsv vaccines

I am on depakote and keppra, have had my covid booster shot 2 or 3 times and no prob with or effects