Sooo this is going to be one of those annoying paranoid questions. I'm eye rolling at myself right now, but my stomach has been upset for a day and a half (TMI, sorry - diarrhea) and I've been freaking myself out thinking I contracted listeria because I have in fact eaten a few sandwiches during this pregnancy. I've seen some other ladies say they had stomach bugs...how do you know the difference and how do I stop scaring myself to death? How do I know when to go to the doctor?