Vomiting, diarrhea all night long what could be wrong with me?

I was fine all day long yesterday, I went and ate jack in the box a Jr bacon cheeseburger (only took a couple of bites) and also was eating off my husbands Broccoli and cheese soup from subway this was all about 4:30 in the afternoon. I went into work at 5, I started having spouts of sickness around 8:30pm where i would just all of a suddenly feel really ill, I would be sweating and my stomach would hurt severely but it would last for 2-3 minutes and happened every about 15 minutes.I was able to tough it out until i got off work at 10 pm.About 5 minutes after i got home, I became very, very sick, I was NON STOP vomiting EVERY 5-15 minutes until 4am in the morning and I know this ill sound really disgusting but I would be vomiting and barely be able to hold my diarrhea in I would have to be dry heaving on the toilet with a bowl to puke in while i have violent diarrhea all at the same time. I was having bowel movements that were completely watery and about a liter at a time was coming out.I had to have repeated this process about 20 times last night.I feel fine this morning except my stomach feels very very weak which is probably due to the vomiting all night.What could you possibly think was wrong with me??I have a feeling it was food poisoning which i have had quite a few years ago and it seems very similar.