I am currently on xarelto, and an having extreme left hip, knee and lower back pain. I ve had these symptom, occasionally, since I injured my back many years ago. I tried better mattress and exercise, but just recently pain has returned. I have an appointment with my orthopedic MR, thus Wednesday, but the pain isn t allowing me to sit, stand or lay down without that pain. Since I can t take ibuprofen or Tylenol, is their an alternative? Should I use heat or cold, or both on affected areas. I also get a jabbing pain in my right groin, at times.