there are a lot of other autoimmune diseases such as, fibromyalgia, MS, and Lupus among others. you should do some research. all these diseases have similar symptoms with a few difference. initially i was diagnosed with fibromyalgia, then they thought it might be MS, finally myositis. the difference was the rash on my chest and the choking, symptoms geared to myositis. drugs used to treat myositis have a lot of side effects, so if they are not helping you ask for something else. i would suggest seeing a rheumatologis. good luck.