hi I have a large lumps on the back of my calfs ,lump on the left leg is larger than the one on the right leg,also the left calf is hurting on the side if touched.I have a pain in my lower back for last past 7 weeks and shoots down to my front and legs.My doctor have done all kind of the test , x-ray of my back, blood tests, urine tests and they cant find any thing.What is wrong??