Below are the widely accepted early warning signs of Parkinson's Disease. Having a symptom doesn't mean you have the disease; however, if you notice several symptoms, it might be worth consulting a neurologist to be sure. 1) Loss of sense of smell. This is one of the oddest, least-known, and often earliest signs of Parkinson's disease, but it almost always goes unrecognized until later. Patients say they were at a party, and everyone was remarking on how strong a woman's perfume was, and they couldn't smell it. 2) Trouble sleeping. Neurologists stay alert for a sleep condition known as rapid-eye-movement behavior disorder (RBD), in which people essentially act out their…