We noticed a rashy spot on his side so we took him to the vets and he has a 'hot spot'(he had a hot spot on his neck when he was younger). She said anything could have caused it, maybe a bug bite, and she shaved him so now he has a big ugly bald spot
and put him on antibiotics.
The good news is he lost 14 pounds since I put him on his diet and now he only weighs 156 pounds and she also said he looks very well taken care of