muscle spasm
"Taken with a regimen of meds to treat Fibromyalgia/Myofascial Pain Syndrome, stiff muscles, muscle spasms, and chronic pain from head to toe.

The medicine works, no doubt. But the longer I've been on it, the more side effects or dysphoric reactions occurred. I literally need to get off it now after 18 years. The feeling of needing to move, itching body-wide, body temperature changes, double vision, and just about everything reported on these lists has now become noticeable to others as I change before their eyes. The feeling I experience is worse. Carefully watch while on this and have loved ones observe you. "