wellness1

My husband has suffered terrible attacks of abdominal pain for several years and we can't diagnose.
We assumed gallbladder trouble because:
.attacks began after he'd lost alot of weight quickly due to switching to an all raw, whole foods diet,
.pain is in upper right quadrant and is accompanied by belching and flatulence and nausea.
These are all typical GB symtoms. However he doesn't have pain radiating to back and shoulder.
His stools are light colored and on the soft side and contain undigested food sometimes.
During attacks he vomits alot and the pain ranges from mild discomfort to nearly unbearable (writhing on the floor, moaning and delerious). He describes the pain as being punched in gut. cramping as opposed to sharp. No fever.
Hot baths bring some relief, and tylenol when he can keep it down.
I put his symptoms in the remedy finder and it indicated Nux Vomica, but it doesn't help at all - not even w/ the nausea.
Originally the pain during attacks was isolated to upper right quadrant - GB area. But now it is sometimes in middle and a bit lower. Between attacks he has no discomfort and strangely enough is in very good health, rarely gets sick and has a very hearty constitution.
Also, he cannot digest greens - they pass right through him or he vomits them up during an attack. Food wise, it's hard to say what aggrivates because it can happen regardless of what he has or hasn't eaten. To be safe eats no sugar and for fats just coconut /oliveoil, fish, and eggs.
He takes fish oil. Eats very little flour or wheat.
Ultrasound showed no stones.
DOES THIS SOUND FARMILIAR TO ANYONE OUT THERE?
Also, what types of alternative medicine works best if it is gallbladder?
Any ideas? We are desperate!
Thanks so much