Please read back pain, scoliosis, work, disability?

I have scoliosis but unsure about the degree of the angle, though my spine is shaped like a J. I was told about it 4 years ago but not actually diagnosed cause I was there for bronchitis. The doctor said any pain I had could get worse. Well since then I can tell that the pain has progressed and causing me problems now. I can only sit or stand in a position for bout 10 minutes before my back starts hurting. I can't walk very far without pain. Cleaning house is even hard to do. I used to work in child care but unable to do that now. I volunteer in school office, being allowed to sit or stand, but even with all the moving around it really bothers me and I can only help out about an hour or two before I have to go home and lay down to rest my back. I had alot of breathing problems the past couple years the doc says it sounds like asthma but its not when I'm just active its even when I'm in bed at night, which make me wonder if its from the scoliosis. I have trouble sleeping because of tossing and turning to make my back comfy. I'm planning on scheduling an appt with the dr to check my back. Is there anything I can do exercise wise or something to help my back? Should I be thinking about disability? I was planning on going to work in the school system but can't with this problem. Im 28 now and live in VA. Also my memory seems to be getting worse and I am fatigued alot. Thanks for any info.