 [ Symptoms ] my stomach gets sour first i can taste it when i burp then i vomit it has happened many times why  it starts with nausea when i burp it tastes like rotten eggs really nasty i know that i am going to end up vomiting soon from the time i have a sour stomach to the time i vomit its about 4 hours sometimes sooner usually it takes about 2 vomits to get it out then i feel better it has happened 3 or 4 times in the past six months i am just trying to find some answers on my own i know only a doctor can diagnose me but knowledge is power [ Disease ] maybe its gastritis