Do you think there's a problem with your relationship or Marriage ?

Most of the time we communicate openly, including criticism on our family. Just thankful that luckily both of us do not super side our families. Like eg if my family wasn't a good example for doing something, I wouldn't blindly say they are right just because they are my family and same goes for him. Now I am fat, I feel that he does get visually uninterested in my body... Sex is there but I dont feel desired by him.