Well, yes sir, thanks. I have a past left calf injury (8 yrs) where some tendon popped or attachment tore. Now, from time to time it feels like I am about to c ramp, but it never goes full blown, nor is it ever actually painful. Both the left and right ankle pulses are about the same. I m thinking blood clot but maybe it s just assymmetrical use since I need a right hip.