Greetings Dominique! If you are not well enough to go to the school meeting for your daughter, please call and ask them to reschedule. They will not think bad of you. Explain your situation and ask if they can do a phone meeting with you for now and have another meeting later in the fall. If you need to sign papers, maybe the forms can be sent home with one of your daughters and you can sign it and send it back. I work in a school and we do this sometimes. The school will appreciate your honesty and they will work with you.
I remember feeling like you describe and the pain and fatigue was unreal. It will take time for this to resolve so do your best to rest and tell your rheumy everything so your treatment can be tweaked to bring you better results. Can your 16 year old do your grocery shopping from a list you create once a week? I used to creat behavior charts for my son (who had ADHD) and it included specific chores for which he was responsible. The chores could be done on the weekends if there is too much homework. The chart could also include the other daughters.
Maybe you have already tried these ideas - I really want to help and I do not know how. I hope your writing here helps by just allowing you to vent. This sometimes helps a lot! I will certainly keep you in my prayers! (((((((((Dominique)))))))))) - hugs to you!
Lupus, RA, and (Maybe) Fibromyalgia and LOTS of Medications!