Is it Galbladder or Liver??

I'm having issues that my Dr. can't figure out.
My Dr. is a Gastrointestinal Specialist and has been trying to figure it out for about 6 months now.
I have diarreah everyday, sometimes 3 times a day.
All the tests have come back negative, including excess Bial and blood.
So far this it what I know--Correct me if I'm wrong
*The diarreah is excess water not being used by the body
*Your liver puts out Bial into the intestine for normal food consumption
*The Galbladder puts out more Bial when is needed like when having more fiber in the diet
*Upper and lower GI has come back negative including 40 Biopsies taken froim the Large Intestine
*No blood in stool
Symptoms--
*Nausea
*Diarreah
*Gastro intestinal pains about 2 to 3 hours after eating
*Eating less makes it better
*Eating breakfast and lunch but not eating dinner makes it better
*Eating lunch and dinner makes it worse
*Low energy
*Drinking a lot more than before because of dehydration

I have been suffering from this for about a year now and am at wits end!
I plan on trying to get an ultrasound of my Liver and Galbladder when I get home from work.
From what I've been reading in at this website it could be either my liver or Galbladder not putting out Bial.
It seems that I have the symptoms of someone that has their Galbladder removed!
What are some thoughts on this?