I Am In Excellent Health, Have Always Been. I Am

I am in excellent health, have always been. I am 55 yrs old, am 5'5". weigh 128 and have ever since I graduated from high school. I have had three (3) live births, vaginal, no complications. 10 years ago a scan my gynecologist took showed that I was in danger of osteoporosis. For one week now, with no traumatic event, my right hip, like the top of the femur right I the socket, has been so painful l that I limp noticeably. I am an athlete and have played tennis avidly my whole life, and have continued to work out for strength on machines. I quit jogging a decade ago. I had no pain in my joints then.