Dumping? Likely not. From what I hear on the gastric bypass boards that seems pretty intense like you are literally having deathly pain and fluids from both ends. Many will tell you that VSG patients don't "dump" on sugar or excess fat. I tend to agree with them based on my personal experience but there are others who call the experience they have dumping. Just saying...don't call it dumping if you're on a site with bypass people or you'll likely get jumped on! :-)

More than likely you ate too fast or over ate. When that happens you will certainly feel pressure in your sleeve. I got a flushed feeling in the first few months a couple of times and ended up with the foamies. Gobs and gobs of saliva coming back up. It's gross but certainly nothing as horrible as I've heard dumping being described as.

I learned my lesson the hard way and as soon as I got a slighly runny nose or started to hiccup I knew to put the fork down and step away from the table! :-)

I hope you're feeling better now. I'd say slow down and make sure you're not overeating! It's kinda hard to figure out but once you do you'll know what your 'signals" are and you'll be able to read the signs and stop.

Too full or too fast. If food goes down too fast and can't get into stomach and you will get pain as peristalsis continues but the food cannot advance. Dumping for me occurs if I eat more than 6 g of sugar or something really high in carbs , like mashed potato. Rapid onset of nausea, sweating, the feeling of imminent diarrhea, and generally feeling awful, jittery extreme fatigue, wanting to just crawl in to bed. Maybe a bit of both. Check your carb level on the meal.

I had what I thought was dumping just once, by overloading the sugar. I had a banana flimfast which has 25g sugar I felt terrible gut pains for about a hour and sweating. I went to bed in the end with loads of water to drink. I have not touched slim fast again and now wary of sugar content in foods. Which is possibly a bonus.