@burcinc-- Oh my! That sounds very bad. This is why I avoid restaurants that I'm not sure about. Processed foods can go bad very quickly, especially if they're not stored properly. I haven't had food poisoning since a long time for this reason. I did have it when I was traveling abroad though. Since my system wasn't immune to all the bacteria, faucet water and street food both poisoned me. I had to take antibiotics.
If I have just nausea or just diarrhea, I don't get too worried. I might just have an upset stomach or might have eaten something with too much fiber. But if I have both at the same time, then I think it's time to worry.