Before the covid vax, I was sick once in a 9 year period with a flu.
After the covid vax I've been sick four times, including with covid, the thing that I took it to avoid. I seem to catch everything that comes around now.
I'm not drawing any conclusions. Science at this level requires heaps of data that I don't have. It's possible that at 52 years old people rapidly lose a lot of immune function. It's a possible statistical artifact. It's possible that covid did this, not the shot. And it is possible that the vaccine weakens your immune system (there is a plausable mechanism and it's been claimed by many to be the case).