Having nausea problems due to acid reflux.......help?

doctors all say i have acid reflux. It has been going on and off for about 2 yrs now. For about a 3 month span i can eat anything i want and not feel anything no heartburn or nutin.Then all the sudden for about months straight i'll get real nauses and just my throat will other me. i wont get the burning feelings, justnausea. Ive felt nauses for about a month and half now and its everyday, and it sux. If anyone has any advice or anything plz help. im only a 19 yr old kid, very active and any foods that could cause reflux ive neva touched in my life.i dont drinksoda,nofastfood, no coffee,chocalate or spicy food. Please helpme out id ont even nohow i got this and my meds dont work. thank u