Dear Doc, the past few days I have had a strange sharp pain (almost like a cramp, lasting for a few seconds, and then it subsides) in my thigh (the inner part). It is very localised (small area). It comes and goes many many times during the day and night. The intensity varies. At night I also find it difficult to sleep, as my lower back does not allow me many positions. It pulls after a while, and then I have to change my position. I also find it difficult to lie on my back. Just a few minutes, and I feel very uncomfortable. Sometimes at night I feel a few needles and pins on the side of my one big toe (same side as thigh). Lately I feel very stiff, and after getting up from a chair or bed, I find it difficult to straighten up immediately. I used to be a brisk walker, but lately I cannot walk far, before feeling discomfort in the lower back. I am 44-years old, and very overweight.