For a couple of years now I have been suffering with calf muscle injuries, they usually happen after exercising for more that a half an hour and only if there is pounding, jogging, playing tennis, soccer, so much so that I had to stop, during the winter i was going to the gym quite often and this Spring I got a dog, the puppy loves to run and I started going out with him to a park near by, but about a week after we started I got the injurie again, it can be on either leg, and is driving me crazy. I love to exercise and can't do it anymore, I saw 3 different Orthopedist so far and they do not know what is the cause.