Hi, Nilram!

Welcome to NeuroTalk!
I'm glad you found us. We're a lively bunch but we do understand much of what you are experiencing and it is hard. I've never heard of a skin punch biopsy, it sounds pretty horrid to me.
So being in elevated heat helps more than hinders in your case? My case (MS) is that warmth of any significance kind of melts me like jello and I become weak, even less coordinated and terribly fatigued.
I agree, stretching is great for us all and feels so good.