I Went To Bed Last Night And Immediately Felt Stomach

I went to bed last night and immediately felt stomach quesy, got up and immediately had a lot of gas through burping and it was rotten, went and threw up once a little. Then rest of night had large amounts of gas burps everytime I got up due to then having diarrhea all night. Burps only when I sat up. Burps stopped in am but diarrhea still continues. Now couple hours later, burps are starting again along with diarrhea. No pains like food poisoning, I've had that before just pressure from gas burps etc. Any idea what it could be?