I started pooping alot of blood and vomiting last night. it was after i ate several chicken cordon blue. i have been sick all night, have severe lower back pain, and had sharp left sided inguinal pain right before it started. it was if someone had turn on a hot faucet inside me. i had 3 bms and they were all liquid and maroon, brown in color. i am an endurance runner. i don t know if that plays into it. i also had fever and chills.