am a 25 yr old African American male with no known family history of parkinson's I watched a tv show last Monday about a young person around my age who got the disease and I have been reading up on it I'm not convinced I'm going to get it, my left arm is hurting on and off I'm also having muscle spasms and I not noticed I've lost my sense of smell, I have no idea if this is anxiety or I am really showing symptoms of this disease, I have no tremors and I have no cold so I have no idea why I cant smell as well as I did before, can someone please give me advice on what I should do...