Hi there, there could be many causes for the pain you are experiencing. If the pain starts at the back and goes down to the front of the abdomen, it could most probably be a renal colic. This happens when urine is trying to pass through an obstruction usually a stone. But this pain is very severe and colicky. The other causes for the pain could be infections of the bowel and bladder, prolapsed intervertebral disc or inflammatory diseases of the colon. Please consult your primary care physician who will do blood tests, x- rays and may ask for an ultra-sonogram to find out the cause for the pain. Regards.
Pain in the upper right quadrant is often associated with hemochromatosis.
Regardless of what doctor you go to, make sure he includes an iron panel (serum iron, TIBC/UIBC,ferritin). The % of saturation of transferrin will be derived also from these tests.
You might search "hemochromatosis-fibromyalgia-IBS" and take notes and even see where I am coming from.