For the last 2 weeks I have had very strange symptoms. Simultaneously, the muscles in both thighs have become sore to touch. The pain is mainly at the front and at the outside of the thigh. When I woke up this morning it was fine and didn't't hurt at all but within an hour it the pain came back again. The muscles seem very hard and tight. I haven't had any injury or strain. Anyone got any ideas what it could be?