green diarrhea/vomitting

For the past week now I've been sick(vomitting) been in the ER twice from dehydration, they have done an ultrasound(liver/kidney/gallbladder) and multiple blood tests and think its an peptic/gastric ulcer..I am taking zofran ,prevacid, and pepcid. Total bilirubin and alk.phosp. only blood tests high.
I'm waiting for an endoscopy but as of today I've got green diarrhea(and I haven't been eating anything to provoke that, fluids are enough for me to handle) does this still not rule out something with the gallbladder even though the U/S was normal?

[boron]

Stool passed today may be from the food eaten yesterday or a day before. Green stool/diarrhea may be from green vegetables, fruit juices, iron supplements, and maybe from your new drugs. Green diarrhea may also be from excesive excretion of bile, because of their reduced absorption in small intestine (due to some intestinall process, or simply from increased gut motility (and hence no time for bile acid absorption).

Well, normal US doesn't rule out gallbladder disease (a dense bile, called biliary sludge, may be easily overlooked). HIDA scan is more accurate.

Raised AF and bilirubin speak for a liver process, they can't be explained just with gastric ulcer. Gallstone, impacted in hepatobiliary duct could be the cause, stenosis or inflammation of that duct, or a stonewhich came from pancreas and has blocked the whole biliary tree.

You can ask, if a doctor wants to perform an ERCP - the contrast investigation of biliary tree - it is done during upper endoscopy.

[storm100]

For the last few months I've been having this feeling of vomiting  before I eat and sometimes after. It's happening any time of the day. I need to know the cause of it.