<span>A medical term for abnormal, involuntary, spasmodic movements is dyskinesia. Any type of involuntary movement falls under the category of dyskineasia - twitches, tics, chorea, slight tremors, or uncontrollable movement of any part of your body. There are many causes of this disorder, and it usually cannot be treated without medications. </span>
Overuse or strain on a joint can irritate tendons and result in tendinitis. Tendinitis is inflammation or irritation of a tendon — the thick fibrous cords that attach muscle to bone. The condition causes pain and tenderness just outside a joint.