I didn't read all, but the stomach was pinkish and flaky scales? Could be slight burn, could be minor scale rot. Better pictures and a sum up of everything just a little shorter would be nice. If its scale rot, you should notice rust colored areas. If you do notice this, clean your tank out, suggested with chlorohexadine, and wash it good. Put him (or her) on paper towel or dry newspaper until the next shed or two. Maybe apply polysporin or betadine ONCE. Over usage of these can cause scale loss. If symptoms do not get better after two or more sheds, or even get worse, consult a HERP vet. If it is a burn, idk what to do. I've never dealed with a burn to my snakes. If you do not have a thermostat, buy one. Amazon has a jumpstart thermostat for like 35 bucks. Hope this helps and if my info is incorrect, I'm sorry to anyone who wants to shoot me down.