My wife and I count ourselves lucky that our reaction to it was mild.
Yeah, I've still been masking up in public places, meetings, etc. And we're in a another surge right now. Lots of folks getting it.
RE: Fourth shot... I haven't gotten it either. I was told that being under 50 (barely) and healthy, to wait for the booster in the fall, in which some of the more recent variants will be dialed in. There's been a few studies / concerns about how much vaccine we're dosing ourselves with. Not that the vaccine itself is harmful, but that our immune system gets overloaded with vaccine in a way that keeps it on high alert. (Theres word for it that I forgot.) Still lots of studies going on about it.
Long COVID is real. I know plenty of folks dealing with it. Rest up. Get as well as you can.