My legs are sore from my feet to upper thighs like i have just gone for a long, hard run but i have not run in a couple of weeks?(for about 5 days)

Muscle Pain: Are you feeling well in yourself otherwise? Having ongoing pain without a precipitating cause like exercises might need to be checked out, with your doctor. Sometimes muscular diseases might manifest itself with pain Also it might be a symptom of other medical problem I would suggest to have simple pain killers and see how it goes Having persisting pain might warrant review by your doctor

Hips and pelvis ok?: there can be numerous causes, but the fact that both legs are involved suggests either some exercise that brought this on(like excessive stair walking), problems in the pelvis, hips or low back radiating pain to the legs, or swelling in the legs.