what are the symptoms of parkinson's?
<answer> A tremor, or shaking, usually begins in a limb, often your hand or fingers. Symptoms often begin on one side of your body and usually remain worse on that side, even after symptoms begin to affect both sides. Stiff muscles (rigidity) and aching muscles.One of the most common early signs of Parkinson's is a reduced arm swing on one side when you walk. This is caused by rigid muscles. 4 Rigidity can also affect the muscles of the legs, face, neck, or other parts of the body. <context> Other common symptoms. Besides tremor, the most common symptoms include: 1  Stiff muscles (rigidity) and aching muscles. 2  One of the most common early signs of Parkinson's is a reduced arm swing on one side when you walk.3  This is caused by rigid muscles. 4  Rigidity can also affect the muscles of the legs, face, neck, or other parts of the body.he most common cause of non-Parkinson's tremor is essential tremor. It's a treatable condition that is often wrongly diagnosed as Parkinson's. Besides tremor, the most common symptoms include: 1  Stiff muscles (rigidity) and aching muscles.