What s the best plan to find out what s causing my somewhat yellow facial skin,severe pains that for two days in abdomen--back and front--have plagued me, nausea, loss of appetite, et al? Yellow facial caste, darker color urine than usual, big pain in abdomen--back and front--as well as constant lower back pain (known stenosis and scoliosis, bulging discs)nausea etc. are related to my diseased gallbladder, kidneys, pancreas, LIVER! or what?