if you’re enjoying yourself then carry on. As long as you’re not going bonkers on the ale then I suspect it’s fine. Not being fit is the biggest killer in this country, and you’re good on that account. Getting up for a pee a lot is an older mans thing, I’m 42 and get up to go for at least one pee in the night. My wife sleeps like a log though so no problem there.
To be honest, if I get woken up (if i’m lucky enough to be asleep, which is a rare event nowadays) it’s one of the cats who will do it. They cry outside our door at about 4 in the morning to be let out.