I tried standing straight and swinging my leg up on each side, while keeping my foot pointing forward. I can barely get it to about 2 thirds of the way up to hip height. At this height, the pain is present but mild, and I notice that the limiting factors for this leg lift feel a bit like inflexibility and muscular insufficiency. The other day I felt a very intense instance of this pain that I am talking about. Ill explain how I found it: I was lying on my back, and my knees were together, and my feet were on the floor together. My legs were making an A shape, as in my knees were bent and my hips were bent as well. My lap was making a 45 degree angle with my stomach. (No pain yet) Then, while keeping my feet together, I spread my knees apart. I only moved them a bit when my hip joints started hurting a lot. I think the angles on two planes are a very important aspect of this pain. *This pain is nothing like stretching pain, it doesn't feel like tendons, it feels like the actual bone joint of my hips.* Also it might be relevant that I am 17 years old nearly 18, and this pain only started when I was 15 or 16 about.