Ouch, my leg says

babykanguruh

A tendon on my outter left calf was super sore, so I was trying to stretch is by letting my left foot roll out to the side and holding it there. I was holding the stretch for about 5 seconds when all the sudden there was a huge CRACKLECRACKLECRACK! and my ankle bent and my outter foot sunk to the floor. It sounded like I had broken my ankle! It doesn't hurt to walk on it, but it does hurt if it bends to the side at all. I don't want to go through the time and expense of going to the doctor and getting an x-ray if it is just going to be some soft tissue injury that they can't do anything about. Any ideas?