For the past 4 months off and on, I have been having these awful burps that taste and smell like rotten eggs. I have had them in the past but never for this long. They also make me feel bloated and gassy and crampy and sometimes I feel nauseated too. I've looked online and most people say stomach flu but I think it's been too long for that. And I had my gall bladder taken out 6 years ago so it's not that either. Does anybody have any answers?? Please help!