Every time i eat or drink something i throw it up within twenty minutes. i throw up three times more than i ate/drank it's a sour yellow liquid.

You are sick!: And if you can't keep anything down you will get dehydrated and even sicker. Can you even swallow water with a motion sickness pill such as meclizine and keep it down? If so you might begin to be able to drink ginger ale, salty broth, or rehydration solutions. If not, you need to be seen to get the nausea under control and find out if anything serious is going on. Good luck!