I have had pain in my left calf since February. The calf gets really tight while jogging. I use the elliptical and exercise bike for low impact workouts. I have tried laying off the exercise for a few months. I started up again this week on the exercise bike and the elliptical. Last night after using the elliptical the pain was excruciating when I stopped. I felt no pain whatsoever while on the elliptical. As I walked around the gym the pain in my calf became worse and worse. As I tried to stretch out the calf, the pain increased, I had to sit down. Today as I walk around, it is just a little tender, not very sore at all.