Yes, I've gotten them a few times. I don't know if anyone else makes this distinction, but I think there's a difference between gagging and dry heaving. I'll gag when I brush my teeth or sometimes if I smell something really bad, but it's more shallow than heaving, and mainly in my throat. I never feel like I'm going to throw up when I gag like that (but sometimes afterwards it upsets my stomach and can get me closer to actually feeling like I'm going to vomit.) Anyone else think there's a difference?
With dry heaving, it comes from the stomach and is more of a whole body act. I think I'm actually going to vomit, go through the motions, but nothing comes out. My dry heaves, anyway, are not triggered by smells or seemingly anything outside me, but rather come only when I'm super nauseous on the point of vomiting. This morning I was almost sure I was finally going to vomit and I dry heaved THREE TIMES, just seconds apart, but nothing came up. Very strange.
I may be a minority here, but I actually think vomiting is worse. I hate the taste and trauma (for me, anyway

of the food coming up the opposite way and past my taste buds. The only advantage I can see of vomiting as opposed to dry heaving is that you can feel better after when you actually vomit. Anyone else feel this way too?
My nurse said if you drink more water (which can be quite a feat when you're often nauseous) the incidences of heaving or vomiting should be less or go away. But you have to be careful, if you drink it too fast that can make you sick too. I dry heaved one other time too, and (similar to the first woman who posted), each time it followed a time (about a half hour later) where I ate a lot of fruit. I find fruit is okay in small doses, and when I eat it after eating a protein or fat, but I think maybe when you eat a lot of it at once (or eat dried fruit, which is high in sugar) or eat it on an empty stomach, your blood sugar goes up and then crashes, and when it crashes is when you feel nauseous.