Why now!!!

Ni
Through ou this pregnancy I have had no morning sickness. Perfect, my body isn't gigantic and etc. but yesterday at work I just kept spouting out water (can't really eat not tempted) I held my breath did the whole clenched fist around the thumb thing n still nothing I drank more water hoping it would help nope. Threw that up too. That evening I went to brush my teeth and stuck out my tongue which caused me to throw up more water till it turn yellow (stomach acid)  how do I get myself to eat? I'm worried about baby and myself.