Went to kickboxing at 11:15 this morning. While doing up-downs and kickbacks for warm up I landed wrong and popped my hip. Normally this wouldn't be an issue, but I developed stress fractures in both hips a while back. They're fully healed now, and my hips are usually okay...unless I land wrong. So now my left hip is stinging pretty bad. But I promised myself I'd go back to the gym and do some more cardio this afternoon, so I will. I might have to stay on the bike so that I don't irritate it more, though, which sucks.