What Causes Severe Muscle And Joints Pain Long After Having MS And Arthirtis?

my body is hurting so bad I am in tears, my joints & muscles are so painful I have a hard time getting in and out of bed, a drink to my mouth and getting my hair combed. The legiments in my legs do not want to straighten out so I can stand up straight, lower back and hips are very painful, I was on stirods for 2 years as they was sure I had polymyalgia arthritis. seemed to help for about 3 months and than went back the same as before, muscles are breaking down. I was a very active 74 year old woman until this all took place. I do have M.S. since 1974, But have worked until 65 yrs old and never had any pain like this, do M.S. patients suffer like this. Help....