So, can you pinpoint where the worry is? Is it specifically that you want to me more muscled? Or is it just a more diffuse worry, kinda cloudy and hard to put your thumb on?
Because if it is very definite, I say, write out this goal, in its specifics, and why not try to get there for a while and see what happens?
If it is diffuse, I say take a weekend hiking trip or something to distract yourself, because if you are feeling good on all counts that really matter, Leida's advice is really good - you are already there - and the worry will just hurt you.
I have a mantra that I have spouted for years... "If I eat right, I feel right. If I feel right, I exercise right. If I exercise right, I think right. If I think right, I eat right..." Phil-SC