I woke up at about 1:30am last night, vomiting consistently, I couldn t even move without throwing up. I took pep to bismol and it subsided, so I went back to bed for an hour or so. After waking up at 8:30am, I took buckleys to help clear my congestion and to try to bring down my fever. I haven t been able to keep much down and there s a pain in my abdomen. I just recently went for a bowel movement and it was black and very chalky, almost like if you were to take Kleenex and rub it over a charcoal pencil drawing. I m very worried, what could this be ?