I have had ms for 7 years now. I never knew what symptoms I actually had as I had an mri for an ear issue. A year ago I was told I have thoracic outlet syndrome with both nerve and artery compression. I had one surgery to relieve pressure on my left side and will have my right side done this year. My neuro. thinks I also may have a brain stem lesion starting, but said it can take awhile for them to show up on mri. I went a couple years with no active lesions and last year mri showed one active. I am on avonex. Does anyone know if you can still have symptoms with lesions that show inactive on mri. The problem I have is that thoracic outlet syndrome can have same symptoms as ms. I have been more tired, more pain, and tingling down my arms and neck. The first surgery helped some pain and real bad dizziness I was having, but still have dizziness.