I ran the same seven mile loop as yesterday, but a little slower today. At the end I did 6 hill sprints up chapel street. The side and back of my right hip felt funny and got a little more sore with each repeat. Maybe I should have stopped, but it doesn't feel any worse for wear tonight. It's a funny kind of hip soreness when it comes, kind of a surface pain, like I had scraped it or something. This makes me think it is nerve pain, what people call a "pinched nerve". It really doesn't feel like muscle or joint pain. I'm not that concerned about it at this point. This is the sort of thing they make ibuprofen for!
By the way, the hill sprints felt fine! It's all the squats I've been doing with my strength training.