<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, Ive been experiencing leg pain, groin pain, low back pain, pelvic pain and hip stiffness or tightness, do you know what it could be?  <response>: Based on your symptoms, it sounds like you could be suffering from arthritis of the hip, which can cause pain or stiffness in those areas you mentioned. 