I'm a dancer and pulled my right outer hip muscle about 4 months ago. I had some physical therapy that helped. Now I either pulled a hip/joint muscle in my left inner groin/hip area. Could this be signs of arthritis? I'm a 40 year old active female--my mother has been diagnosed with arthritis in her hip and knee and had hip replacement in one hip back in May....is this hereditary? Should I be worried about hip arthritis?