I've only tested positive for it once, and that illness wasn't even in the top 5 worst colds that year. I've had numerous shitty colds since, any one of them could have been Rona again, but I ether wasn't infectious at the time I tested or it was after the point I stopped testing every sniffle.

There's a chance I have it right now, but I don't know if I can be bothered to grab a test when it will be done in a couple of days.

I'd take an updated booster if they offered me one, but my government is only offering them to over 50s.

I'm of the opinion* that once the majority has spike protein specific antibodies, occasional exposure to small viral loads (incidental contact) is probably a good thing for refreshing an immunity that might otherwise wane and allow a serious case to take root.

*I'm not an immunologist obviously, but I've previously read up on the clinical justification the NHS uses to recommend against widespread chicken pox vaccination