Fibromyalagia is another medical condition that leads to whole body pains,
and is best treated with medications such as lyrica
and neurontin, exercise, and physical therapy.
Regarding your muscle twitching, the most likely possibility is benign fasiculation syndrome, abbreviated BFS. Benign fasciculation syndrome, which I will abbreviate as BFS, is a condition in which there are involuntary twitches of various muscle groups, most commonly the legs but also the face, arms, eyes, and tongue.