Tourney in the works... CM:Infection!

[PoorOldSpike]

HOSPITAL MEDIC - "Doctor House, perhaps you can offer a diagnosis on our patient, he's a white male in his early 20s. He complains of several weeks of increasing nausea and vomiting. He states that the last few days he hasn't been able to keep anything down. He states that he has severe pain in his mid-epigastric region. He also complains of some diaorrhea and reports his last few stools have been blood tinged; he describes it as bright red blood.
His social history includes an arrest for possession of cocaine. He also smokes about a pack a day of cigarettes and drinks heavily
We ordered an EGD and a colonoscopy. We also got an ultrasound of his abdomen with attention to the gall bladder. We checked his pancreatic enzymes. We ordered stool guaiac x 3 (checks for blood in the stool). Of course, we checked a CBC (complete blood count) and BMP (basic metabolic profile).
Everything was normal with the exception of the following: a small nodule was found in the stomach and another one in the colon. Both were biopsied; however, neither was the source of his bleeding. He was also found to have internal hemorrhoids which were enlarged. His stool guaiacs were all positive for occult blood. H. pylori was not checked, mainly because in the presence of an EGD, it doesn't offer any information.
Any thoughts or suggestions?"

DOCTOR HOUSE - "He's just a time-wasting crackhead, get him outta here! Next!"