Ihave been doing an excercise dvd for about 8 weeks now and find it hard work about 3 days ago i was walking upstairs and felt a pain in my calf when i felt it there was a lump it has gone down a bit but i am getting slight pain in muy leg i am also getting pain in my other leg but no lumps there is no swelling or redness but i am a worrier and i am feeling really paranoid would be grateful if you could help thanks