When that happened to me it got worse over time. As months went by I got sicker. I never felt hungry until the end of the day. I would eat a little and it always came up. The doctors knew nothing.
As the bloating and vomiting went on I also started having chest pain with it. I hurt so bad in my upper stomach, chest and mid back that I went to the ER at the two year point. The doctor said sit up for me and I could not sit up. He said I know what it is and I'm sending for a surgeon. I ask what it was and he said gallstones.
If this keeps up and/or gets worse, see your doctor.
I have that problem pretty much daily and it's due to IBS. You may need to increase your fiber intake, but of course I'm no Dr. I also take Heather's Tummy Tamers Peppermint Oil Capsules. You should see a Dr though :)