constant vomiting

for the past few weeks i vomit after every meal i try to eat, and dont eat for the rest of the day.  if i do happen to eat something small, i feel nauseous for the rest of the night if i dont vomit it first.  i have a man voice because my throat is so sore from getting sick every day. i work so much it's hard for me to make a doctors appointment and i was wondering if anyone might know what was wrong.