Hello. For the last couple weeks I have been working out with a trainer at a local fitess club. I m overweight , out of shape and 41 yrs of age. I decided to play basketball through my local comm ed on a women s league last night. As I was running, I felt as if someone kicked me in the back of the calf and then couldn t walk normally. It felt like a tight ball in my calf, so I sat, stretched, and tried walking around. It hurts behind my ankle when I go up on my toes and in my lower calf if I flex my foot toward my body. How can I know if I have injured myself more than a strain? No discoloration, no pain on the top of my foot or in shin area, no palpable ball of a muscle bunching up. Thank you for your time. Trina YYYY@YYYY