Dealing with Fibromyalgia and Limited Mobility

I've been having symptoms of Fibromyalgia since I was about 11 or 12, it got really bad during the school years. I wasn't diagnosed until I was 18, I was told that they won't diagnose you at young age due to drug abuse. I've just recently started to take medication for my pains, but my pains are getting worse and worse as the days go on. I'm not sure what to do about it seeing as I'm confined to my room due to limited ability, not entirely from me however, my daughter is severely disabled and I'm working with her day in and day out to improve her abilities, so I'm very limited as to what I can do. I usually go to a chiropractor weekly but recently I haven't been able to move much without my back seizing up and it travels through causing my back to seize and lock up. Is there anything anyone can recommend to help with my seized and locked up back?