Good Luck and hopefully the Docs get it sorted quickly for you.
Hopefully you have a better go than my Brother did...
A Couple Years back,(sept, 2008) My older Brother started having Terrible, Crippling abdominal pains.. the kind where getting out of bed is out of the question. Went to his Doc. Couldn't find anything. Went to the Nearest Hospital (associated with the one he works for), they run all sorts of tests, can't find anything wrong with him. He starts getting Looks from some of the Nurses, as if he's making it up to get meds.
Finally a Doctor says that it might be his Gallbladder, and they schedule the surgery.
in post op, the Doc tells him, Nope, that wasn't it, Gallbladder was Perfectly pink and healthy when we took it out. That'll be $30,000 please...(ok, he didn't say that last part, but that was the national average price for that operation at that time)
Pains didn't stop. finally he got referred to a Gastric Specialist @ the Univ. Hospital he works for.
Right away, the doc thinks he knows what it is, and schedules a test.
the Test Consists of feeding him Irradiated scrambled eggs, then parking him in a scanner for a couple hours. (so they can track the Progress of the food.)
Turns out he has Gastro-Paresis, the Nerves controlling the muscles emptying his stomach were not working, and as a result, the food wasn't moving on down the line anywhere near fast enough. it was sitting in the stomach and starting to rot.
(he lost a lot of weight those 2 months, with the not really being able to eat..)
Had to Severely Modify his Diet, extremely low fat, low Fiber(well he could have fiber, but not FIBER, had some meds to take to help flush his system, One of which he had to mail order from Canada, B/C There was Never a US Clinical Trial, and it's Gone Generic in the rest of the world, so no chance of getting it here now...
as to what caused the Gastro Paresis? No one Knows. it can Start and stop on it's own. completely without warning.
For the Most part he's back to normal now, but still has to watch the fats, etc. in general eat better.
He's also Developed an MSG Allergy, and Gluten Sensitivity (Not Celiac, just a sensitivity)