Aches and pains

I think I danced for more hours last night than I usually would, and in a slightly different style to what most of my regular partners do, and some of the time I was thinking about aspects of my own technique I haven't thought about specifically for a while.

Twenty-four hours later I have a strange ache in my left hip - or not so much at the hip as deep inside the thigh joint.

I hope my body is planning to do something useful with this information.