If a person cant' stand for long periods of time and is in pain because of scoliosis, is scoliosis then considered a disability? i have had scoliosis for many years and was told originally to just watch it that nothing could be done about it. now i can't

Scoliosis : Scoliosis in and of itself is most often not a painful and debilitating condition. Given your development of difficulties with pain in the legs and hip with standing, one would be concerned regarding the additional development of issues of spinal stenosis or other cause for compression of the spinal cord or nerves running to your legs. Typically in cases of spinal stenosis, the pain is resolved with sitting or bent posture walking such as with pushing of a shopping cart. With your development of new symptoms, a follow up evaluation with your physician is recommended. Even more concerning and indication for urgent evaluation would be the development of issues of bowel or bladder incontinence.

Not in itself: Scoliosis is a lateral curvature of the spine. People w this condition get more back pain than people without the condition. However many folks will also have other degenerative spinal conditions that can coexist. I would see a spine doctor or general orthopedist to address some of these issues.