I have severe osteoporosis, too, and will go on Tymlos this year as soon as I finish my next round of oral surgeries (the final stage of two dental implants). I've had pain in both hips (they aternate) and in my lower back for the past year, but my orthopedist couldn't find much wrong based on x-rays. So he sent me to a physical therapist, who suspects spinal compression. She said that the hip pain that alternates from one side to another is a common symptom. Since I'm a full inch shorter now than I was a year ago, that made sense to me. I'm doing lots of stretches, e.g. cat-cow yoga poses, shoulder stands, back bends, etc., which help. If I don't do them, the pain is much worse. All the best to you in your journey!