I finally said "no more" to this fall festival thing. I got together with the PTO presidents and explained that I was unable to physically and mentally make it happen, that I was more than willing to continue helping out, but that I could not manage the whole thing by myself, not if they expected to have anything at the festival.
I tell you, once I spoke up I felt much better. This certainly was not worth my health. I know my limitations, I am not superwoman; but I also am not a quitter. It was very difficult to step up and say "I can't do it". However, they were very understanding about it and immediately stepped up to ask what they could do. I think the fact that my physical appearance gave its own story was a helpful tool .