Awwwww *gentle hugs* to you grandma. As I have said before, this illness ain't for the faint of heart!
I'm sorry there is no support group near where you live. Have you looked around online for anything that might be like that, say using Skype or something like that? I don't know if there is anything out there or not, I've never looked for a support group for fibro.
All I know is that it's really hard to plan things when you never know what you will feel like on any given day.
I hope tomorrow is a good day for you grandma.....take good care!