Hi and welcome to the GERD forum.
Acid Reflux or GERD is too much acid that build up and can cause many symptoms...one is nausea, and vomiting depending on the individual...as we all will have different symptoms.
Ur Dr may put u on a PPI or IIH to help reduce the amount of acids....along with the med u will need to modify ur diet and lifestyle...
Certain foods, that are acidic, greasy, or spicy can add to the acid build up as well as drinks, carbonated bevs, caffeine and alcohol,.....
Smoking can also make one with reflux feel worse and add to the problem.
See the Health Pages for a list of foods to avoid, and foods that are safe, and tips on lifestyle -
http://www.medhelp.org/health_pages/list?cid=236