I have seen a lot of these questions about sulfer burps. I have had these for 5 years followed by severe nausea and vomitting. I was diagnosed with gastroperesis. Its a condition that causes the stomach to paralyze and innturn it causes the gasses in my stomach to give off a rotten egg taste and smell. The smell makes you even sicker and vomit. I dont vomit every time, in fact i rarely vomit, but the pain and nausea is unreal. I suggest you try reglan. Reglan is for gastroperesis. My gastroperesis was diagnosed via abtube that went down my throat. God bless and good luck.