Conversation: The conversation between human and AI assistant.
[|Human|] I was was stretching my legs and suddenly my right calf was in a lot of pain and my foot would not move back to normal position, like i was stuck that way. I felt the back of my calf and there was a large lump. After about 5 minutes, I was able to return my foot to normal position and the lump went away. I am still experiencing pain and slight difficulty in walking. What happened?
[|AI|]  Hello, You said you were stretching your legs, but why and when? I mean after doing exercise or before exercise? Or you had pain, that's why you were stretching your leg? During stretching if you had overstretched your muscles they get soreness and that causes pain. This pain will last up to maybe 3 to 5 days. And if you have severe pain you can do icing to that muscle for 10 minutes, which will help in reducing pain and early recovery.