Ouch

I went and had my company physical last week. I was declared fit and healthy, all the tests went well, and my marks were good. The only thing is, I had to take a step test, stepping on and off quite a high step at quite a fast rate, and I lost my footing a couple of times. So since I had my physical my right calf muscle has been giving me some problems. That can't really be the idea, can it?