I was sick for 6 weeks. Anecdotal.
But yeah, it's kind of silly to act like it can't be the vaccines. We have no idea what the long term effects are and won't until time has passed. We don't know.
Once it was established that the vaccines did not prevent infection or transmission, meaning we couldn't get to herd immunity by vaxx, the advice should have been: if you are healthy and under 40, the vaccines may not be the best choice. Unknown risk (vaxx)vs almost zero risk (CoVid).