<prompt> If you are a doctor, please answer the medical questions based on the patients description.Whilist Studying today My left calf started hurting and when i looked at it i saw a lump move down and the area from which it moved started twitching it hurt alot and i don t have a lump so something in my calf moved down it moved back for the most part but now whenever i extend my leg it hurts  <response>: Hi, Dear,Welcome to Chat Doctor. Based on the facts of your query, You seem to suffer from-Muscle Cramps which moves up and down with twitching. These charlie horses indicate the low potassium calcium magnesium electrolytes, due to over exertion or from stagnated Venus flow from incompetent venous valves of the calf or could be from reduced intake and increased losses from exertion and muscle stress. Remedy -Extending Flexing the legs would reduce these cramps. Second opinion from Surgeon Vascular Surgeon with Doppler Study to detect Varicose Veins of the Calf muscles is suggested. Veno-Stockings Rest -Elevation increased intake of boiled potatoor banana milk or butter shakes would relieve them.Hope this reply would help you to plan further treatment with your doctors. Contact with a Followup Premium question to ME. Will appreciate your Hitting thanks and writing excellent review comments to help needy patients like you. Good Day!! Chat Doctor. S. Genl-CVTS 