Questions about Vomiting?

Okay so today I had a huge workout at my high school to get ready for the sport's season and I had eaten a lot like 45 minutes before (including some acidic orange juice). And after sprinting a few times I began to feel nauseous so I asked if I could sit a few workouts out. Then I puked. But I know why I did (ate too close to the workout) because afterwards I could do a lot of stuff (like heavy lifting). But before I vomited, I got kind of like dizzy and I had to keep my eyes closed because I was seeing all weird colors (like when you first wake up or rub your eyes and open them). After vomiting, the rest of the day I didn't have those symptoms again so I was just wondering what happened?

The excess movement upset your stomach. Same thing happens to me. I've even had several times during intense workouts where I felt like I was going to vomit just because I was pushing so hard (I hadn't eaten for several hours beforehand). It's also pretty common to see someone throw up in the first couple days of intense workouts in high school sports.

As far as the dizzy part, I've had that happen to me when I had more violent vomiting (like when my stomach was really upset). If you didn't have that the rest of the day, you should be fine.

What I would suggest is to eat at least 2-3 hours before you work out, just so your stomach digests enough to not get as upset.

You ate then you over worked yourself while being so full. Next time eat a light meal then just watch how hot you get, it wasn't just the food but because you got so hot.

That's why they tell athletes (and others) to eat at least an hour before working out. When you can't do that, eat pasta (did this before aerobic workout) with nothing else except some butter, salt or a little sauce. No protein as that takes too long to digest. It provided enough carbs to complete my workout, then afterwards, I would go home and eat some proteins (chicken).

For a quick pick me up before exercising, I ate some bananas as my stomach could tolerate it while I was moving around (dancer).

This sounds like a mild bit of "dumping". This is when the stomach content enters into the upper intestine too rapidly, triggering a massive neurohormonal release that attempts to slow emptying. Side effects of this include dizziness, nausea and vomiting.

Putting pressure on the stomach could mechanically cause some of the content to release before it should. The starting position for sprinting could do this.

Avoid sugary juices or other sweets before a workout, as they can particularly bring this on. Eat lightly, and stick to protein like eggs (not protein drinks) and some complex carbs from whole grains.