I have had leg pain for over a month now...Started in my left calf and then was both legs, now has been mainly the right leg for about 2 weeks. It is mainly in the calf but goes into the foot, thigh, and butt too. It is worse at rest and at night. Last night I got a sharp pain in my knee, too. The pain varies from a heated, light pinched feeling in different spots to a cramping to a dull ache to muscle ache/swelling. Anyone know what it could be?