Friday May 4th. I ate a cobb salad. later that night i had sever upper abdominal cramps, so bad i almost went to the E.R. Worse that labor contractions. I threw up a bunch. lettuce each time. after about 5 hours of extreme cramping and pain I was able to fall asleep. not sure what part of that salad it was or if it was the chicken, but i was hoping there was no longer a threat with romaine.