Help please! - I am getting run around, Diverticulosis, GERD, UC, Etc

Hi,

I went to emergency room 3 months ago with extreme pain in my belly. After 3 hours of blood tests and xrays, I was told I was bloated(lots of gas in stomach) and I did not have infection and see a dr. I went for first visit and did blood for for Celiac indicators(my mom has celiac), white blood cells, and other recommendations from dr. I also was told to do stool samples. That took almost three weeks to get back! Everything seemed normal except stools. I had white blood cells in stool. I guess this is common with inflammation and infection but I showed no infection from blood. meanwhile I still have discomfort and dihrea.  Then I was sent to specialist who wanted to eliminate Celiac from the list for sure through biopsy. What better way then ordering a colonoscopy and endoscopy. Those results took 3 more weeks!  I was told this:
EGD 2/20/09
1. Mild gastritis
2. irregular z line
Colonoscopy 2/20/09
1. Nodular terminal ileum
2. mild rectal erythema
And finally
Mild acute colitis in Rectum and Colon
Since it was all mild and nothing crazy like Celiac or anything visually damaging like chrons I was told I probably have the beginnings of UC and should start lilda and and antacid Aciphex.

Several weeks go by and nothing is working except I am getting migraines from what I found out later was caused by Aciphex.  
Then I had blood work done to look for the inhibitors that would lead one to either UC or chrons.

They all came back negative for both. So CT Scan was ordered:

Diverticulosis was found but not Diverticulitis. And now I am suppose to feel better with just high amounts of fiber?

What should I do? Stay on Lilda? I do not get heartburn only upset stomach and bloating. Which I hear is because of Diverticulosis?