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Yes. It happens to me when I've had something with too much sugar or fat in it. It is usually followed by barfing at which point globs of frothy saliva and gooey stuff come right back up. Sometimes my sleeve just doesn't like something, such as dry chicken, and it triggers the same response.

I am only a few days post op. It was my first day on ful liquids. I had cream of wheat with skim milk. Later, I had a 4oz protein shake. I was stuffed and felt it was coming back up. Not barfing but like it was being forced back up because there was no room for it. Felt like there was something stuck in my throat all day. I can't seem to eat the amount of food they say I should be eating.

I understand it can also come from eating to fast. Particularly as you move to more solid foods. Your sleeve can digest it fast enough and the saliva gets displaced.