I have noticed in the past couple of weeks that my two year old labs muscles twich if you stroke his back or ribs. He has also been scratching and licking his sides quite a bit. I have switched him over to raw food about two months ago.
He definitley has the thumper spots, they are just new, he never had them before, although he used to have a layer of fat and maybe wasn't quite as sensitive. I am hoping the licking and scratching is just dry skin but I haven't noticed the skin being dry or flaky, very pink though. Maybe I will take him back to the vet just to make sure. He has megaesophagus, so I am a little sensitive to any new "problem" I notice in him. Thanks, I do feel better about the twitch, Neither of my labs have ever had it before.