I dumped for t first time about 2 weeks post-op (I think) on a petit filous fromage frais. I was very nauseous, dizzy and faint and had to lie down. Since then I've discovered I dump very easily indeed....either by eating something with a high sugar content ie petit filous, NAS Angel Delight, etc....
...or by eating something fatty ( a tiny piece of pork crackling on Sunday) a fat dump feels different, I get a distinct pain in my tum/pouch/intestine and have abdominal crampin and feel very sick/washed out.
....or by eating/drinking too fast eg milky coffee, no sugar....the dump from eating too fast is much more like a sugar dump.
I haven't had any really catastrophic dumps but I think that's because I've realised how easily I dump and am now extraordinarily careful. I would NEVER risk something with a rally high sugar content now!