Constant calf cramp and intermediate pain in bottom left and right pain. ultrasound done to rule out dvt and none found. can this be lung or gastrict?

Constant Calf Cramp: I am glad you did the ultrasound, but I would still get a complete vascular workup from a vascular surgeon. The 2 common causes of this cramping that is common is blood clot and referred pain from the sciatic nerve. See a neurologist, physiatrist, orthopod, or chiropractor to check on the sciatic nerve coming off your back. Dr Rich Blake