Had 2x phizer last sept which the second dose made me feel bad for 2-3 days. Caught Covid end of December and felt bad for a full week. Have been non-Covid sick 3x this year since then including right now while working a big car show in Reno. Have also had an absolutely terrible year for allergies, by far the worst I remember. Prior to all of this, I averaged getting sick once every third year. All that to say it feels like my immune system has taken a dump, the cause of which I’m suspicious lies in one of the above, although I’m not sure which to blame.
Not to stir the conspiracy hornets nest, but my experience has been much like yours. 2x Pfizer last August. Got the Delta strain in late January this year (first time I’ve had it that I know of), but pretty much the last year I feel like I’ve been much more susceptible to catching something. Granted, I have a youngin in daycare which is a disease factory in itself, but even before I was good for about one good round of sickness per year. Now I feel like I’m on a constant see-saw of bad allergies, random sinus junk, and GI-issue flares (which I’ve always had but now is like one constant flare).
I’m sure it’s all a coincidence though.