Hello and hope you are doing well.
Gall bladder disorders usually cause right upper quadrant pain, nausea and sometimes white stools. It can cause nausea and vomiting during an acute attack of cholecystitis.
Hope this helped and do keep us posted.
Do you have pain anywhere?
Lots of things can cause vomiting of undigested food.. first thing that comes to mind about you is "acid reflux".. but that's not a diagnosis.. just a guess.. based on what you said.