I'm no expert...in fact I'm only posting here because I posted earlier with a similar scenario. I'm 20, male, 6'1" and 195 lbs. From the age of 15 or 16 I've had the morning sickness you're describing here. I've been to two doctors about it and here's the advice I was given:
Doctor 1: "drink lots of water, cut soda out of your diet, get on a more rigid sleep schedule and try to make a habit of eating breakfast.