My husband has had tingling and numbness is his arm and leg for over a year, along with back pain.. had mri of back and it showed bulging disc and arthritis. Dr. wants mri to rule our other problems. I am worried about brain cancer, which uncle had. Dr. doesn't think mri results show reason for numbness. could these symptoms for this long indicate anything other than a brain tumor or MS. . I am an anxious person and always think the work regarding medical problems.