I was awaken at 3AM Sunday morning with nausea and had to dash to the bathroom and vomit. At this time I vomited about 4 times, all the while I had sweat pouring down my face. This happened almost hourly- again at 4am, and 5am. When I was able to rest, the pillow was soaked with sweat. I had no diarrhea or abdominal cramping though I did have more bowel movements on Sunday than I typically do. I was feeling poorly the rest of the day and am very tired today. Thermometer showed almost no fever (98.8). I am female 55 yrs of age, 5 7 and weigh 210. I had eaten the same thing at dinner that others ate and they had no problems. At appx 2pm Saturday I had a fast food burger from McDonald s. This was the only thing that I ate that was different then others I was with. Could this have been food poisoning?? Would it come on that fast and also go away that fast?? The only other physical trouble I noticed during this event was lower back pain across entire low back, but I had traveled in a car 5 hours that day and was sleeping in a different bed. Other then VERY sore abdominal muscles from the vomiting I don t seem to have any lasting trouble from this occurrence. Also I was able to keep food and liquids down after around 9am Sunday, and had no nausea. Thank you.