Have you had any changes in urination (blood tinged, tea colored, clots, darker that normal) Fever, chills, night sweats, wt loss, jaundice, clay colored stools, blood in stools, dark tarry stools? How long has this been happening for? anyting make it better or worse (other than sleeping on stomach) any pain anywhere esle? is it sharp, dull, colicky (come and go) any History of kidney stones or gout? Pain that has any relationship to eating? do you have any pain if someone pushes up toward your right shoulder on your abd on your right side under your ribs while laying on your back? How about if someone makes a fist and taps on your back about midway down your back just above the last ribs (do both sides). Do you have any health problems, how old, and what type of work do you do? does this pain wake you at night? does it ever happen during the day? What medications (over the counter, prescription, herbal, and any other)? This is a start. If you dont want to disclose this on the board, feel free to email me I will get right back to you. I can only give you an idea of what it maybe so you may suggest things to your Doctor and my ULTIMATE ADVICE IS TO SEE YOUR PHYSICIAN ANYWAY ASAP.