I was in hospital for 3 weeks undergoing different tests when I was first diagnosed. The skin biopsy confirmed I had dermatomyositis but all the other tests have been ok . It's only been the last 3 months that I have been having muscle problems - It's the not knowing that's hard, it could be something else causing the problems but the type of problems I have been having seem to be typical of the illness . All I take now is paracetamol , I suffered from throat infections when I took azathioprine and I had various side effects from the prednisolone . Not sure where I go from here.