the past few weeks, i have developed knee
buckling and the sensation that my knee
is going to snap backwards while walking
or standing with weight bearing down on my left leg. it also gives out every now and then, and now i also am experiencing a shooting pain that feels cold and radiates partly down to my upper calf bone, and after the shooting pain is over, the knee feels very cold and achy. (this pain i am describing is occurring inside the knee, and not on the exterior.