 [ Symptoms ] can ejection fraction be improved by exercise [ Disease ] i bet that you want to know why since a daily stomachache is problematic unfortunately since i do not know anything about you your medical history or have any way of examining you or ordering some diagnostic tests you will need to see a medical provider there is not way for me or any medical provider to be able to blindly diagnose you over the internet based solely on one sentence sorry do you have heartburn andor vomit that comes up but is not enough to actually vomit if so it could be gerd or it could even be an allergic reaction to a food you are eating