For a few days now my 2 yr old male cat has had a puffy upper lip. It doesn’t seem too painful for him - he’s been acting himself. I’m not sure if I need to take him to the vet. I kind of think a bug bit him. We have black ants and he loves to play with them or any other bug that’s crawling around and often tries to eat them. So to me it makes sense if a bug bit him. I’ve attached a photo. Please let me know what it looks like and if it’s serious enough to bring him to the vet.