Struggling with alcohol 0% beers

Hi, am 54 in September, been drinking since I was 15 enjoyed a few guinness or other things plus few whiskeys. But last year or two if I have more than 1 ordinary beer at night I feel awful next morning, diahorrea anxiety, nausea, poor sleep. Thinking of going for a few % beers now at night. Tried a few before. Heineken and carlsberg are fine. Seen peroni % in my local store. Just like to enjoy a few cold beers maybe with a film and feel fine next day. Could have maybe one ordinary beer or guinness then go %. Fed up feeling like crap next day!