Cortisol 763, ACTH 11.5, creatinine +3X normal, pressure in head, abdominal pain RUQ, diarrhea severe, tachycardia, hypertensive, MRI head, CT abdomen, CXR all done-no abnormalities, Colonoscopy normal. What could this be? Numerous blood and urine tests done. Have not done DST, should this be considered?