Hi There, I have been getting severe stomach/cramping pain on and of for the last 4 days, doesn't matter if I eat or not, it makes me feel nausea and I vomit on and off, the pain is in the central area of my stomach and lower down, I have also noticed when I burp it is foul smelling, what can be causing this? I have also been referred to clinic for a vagina prolapse can this be whats causing my symptoms?