A pre cooked cheeseburger from the cold section in refrigerator . The cheeseburger was purchased i hadn't ate all day i put it in microwave because it came pre cooked and cold. I started feeling sick within 15-30 min. The stomach pains were so bad i was up all day and night and sweating .One moment im hot next im freezing. I felt so sick with worse stomach pains and my back was aching so bad as well. I was so dehydrated from constantly throwing up. Everytime I'd chew on a piece of ice or sip water my stomach would cramp immediately and within 10 min id throw up again. I've had food poisoning one other time back in 1998 from taco bell even though symptoms were a little diff this is the worst type of sick and pain ive EVER experienced even labor pains had nothing on this!.