So sorry that you're having pain issues and had to reschedule a doctor's appointment, Mike.

Hopefully all your issues can be resolved soon!
Do Buddy's sores seem to radiate in a symmetrical way... spreading up the sides in a similar fashion? I'd really recommend getting Buddy to the vet, a dermatologist if possible, for a skin biopsy. His symptoms just sound really familiar. Some possibilities include food or environmental allergen or even pemphigus, which is an auto-immune condition in which the immune system goes wonky and starts seeing skin cells as the enemy, and attacking them. For Willie, the sores started on his belly, but then radiated upward, in almost a straight line up his body. Over 2 months, it affected his paws, legs, face, ears, etc. Most of the possibilities are ones that will not go away without proper treatment. The biopsy will either provide a clear answer, or at least narrow the range of possibilities. Willie was ultimately diagnosed with pemphigus about a week and a half ago. He began treatment with cyclosporine and the turnaround has been nothing short of miraculous. Other than 2 tiny spots, his scabbing is completely gone. HIs face and ears literally cleared overnight after starting treatment. Take a look at his spreadsheet... his numbers dropped like a rock almost immediately as well. Plus, if the sores are seeping at times, it is likely he has some infection going on in them as well. A skin issue and/or an infection can have a very dramatic impact on BG#s.
I would strongly suspect that getting to the bottom of that issue will be the key to getting Buddy's numbers under control. If you have any questions, feel free to PM me!!