I was just reading some postings on this website. I, too, have been having severe pains in my right side, lower back and waist. These feel like a tourniquet is being applied around my waist. A tightening feeling. I also experience a burning sensation in my lower back. My right side gets these sharp pains on and off and feels unusally tight. I had some blood work done and it ruled out any problems with my liver. I had an Ultrasound and it showed nothing. What is the next step?