Awww, sweet boy!. I think he finally really knows he is in his forever home.
He trusts you and knows you are momma . He's so handsome. He reminds me a little bit of my Angel. . He was long too!
As for the peeing, is he eating his wet food? Is he a good water drinker? I'd say as long as hes going a couple of times a day, if not one big one, he's probably fine. As you said, no other symptoms going on. Maybe wait and see a little longer before asking the vet about it.
I'm sorry to hear you haven't been feeling well. I hope you will be feeling better soon! Hugs!!