Verified answer

If you're not used to eating that much fiber, it can cause problems. Diarrhea is most likely, though it can cause the opposite problem (constipation). You probably won't throw up. Be sure to drink plenty of water.

Fiber is good for you, but you need to build up to it.

You won't throw up from too much fiber (not fibers). You'll get the sh*ts. The pain is caused by gas, which can also occur when you eat too much fiber.

It is healthy to consume 12 grams of fiber for every 1000 calories you eat.

That is certainly not too much fiber, but it might make you uncomfortable if your body is not used to eating much fiber. Keep eating healthy and you'll become accustomed to it.

Fiber is basically wires sliding down your digestive system cleaning you out (will make you poop). Fiber isn't usually toxic so it wouldn't trigger a vomit reflex.