Questions in The Neurology Forum are being answered by doctors from The Cleveland Clinic , consistently ranked one of the best hospitals in America.
History includes heavy smoking.
My sister said there is a blood test that can test for cerebellum degenerative diseases. There is a wide reange of degenerative disorders which should be considered, but more importantly the possibility of non-progressive treatable disorders should be conisdered. It would be a tragedy to miss something treatable like thyroid dsisease simply because eveyone presumed that this was degenerative in nature. For this reason your first step needs to be a detailed history and physical examination by a neurologist, and subsequent testing based on the outcome of this assessment. It is too early in the process to start jumping at specific diagnostic tests without first having an expert look at the big picture.