Metabolism and throwing up

Here are some of the Dangers:

Foreign Objects:

Some people have used objects such as the smooth end of a toothbrush to induce purging. One danger is that if you inhale, the object can be sucked out of your fingers and get lodged deeper in the esophagus where you can’t retrieve it. A hospital visit will be required. Purging at that point could be quite dangerous - it could force the object through the esophagus, possibly into lungs or heart.

Rupture:

When you are sick, or if you have damaged the inside lining of the esophagus, it can become inflamed and swollen. This makes the opening much smaller than usual. If you purge at these times, all the pressure from your stomach is trying to force a lot of food through a tiny opening, and the pressure can be too much and rip it off your stomach. You want to absolutely avoid purging if there’s any possibility of inflamation or unhealed damage from prior purges.

Teeth rotted away from stomach acid:

Rinsing with water, or better, water and baking soda to neutralize the acid, as soon as possible afterwards can minimize the damage to the teeth. Brushing is not recommended, as it is believed to remove tooth enamel when it is weak from the stomach acid.

Prevent acid / food damage to the esophagus:

Drinking water will dilute the acid and minimize damage to the esophagus, while at the same time providing greater volume so the food pieces themselves are in less direct contact with the esophagus, doing less damage.

Finger skin and nail damage from acid:

Avoid putting your fingers down your throat - the acid causes damage to skin and nails.

Red spots around the eyes:

When you’re throwing up, there’s intense pressure in your head - if the pressure is too great, you can burst some blood vessels in your eye. It’s called a subconjunctival hemorrhage. Avoid straining too hard if possible. http://net33.com/thin/purging.htm