Hi Allen,

Welcome to the group! Since I've had MG, going on 11 years, I can't take the heat at all and perspire a lot. A temp of 80 now feels like 100 to me. Mestinon often makes it worse, even a low dose. My vision is often effected when I'm in crowds, especially when I'm in a store. For me the lighting has a lot to do with it. They can be fine and as soon as I walk in I start getting double vision. Do you have only ocular MG? Take care.

Hugs,
Pat