Aching Leg Aching Leg?

Aching leg? - aching leg

The last two days I have pain in his leg. When I sit down while watching TV or working feel my legs start that he ran 10 km yesterday. But collects only on the left side and the pain. I do not know if it's just a baby sitting on a nerve or something. I called the doctor, but not come back to me. All ideas how I can make you feel better, without having to configure too (I can not really think that at work).