Hi.
Thanks for your query.
This may be a colon problem as you have a persistent pain in the right side of the abdomen.
This is one and half year that your pain is persistent, CT and HIDA scan normal.
The area of the of the pain in the right upper quadrant with chills and fever are more suggestive of
Cholangitis.
I would advise you the following:::
Get an ERCP done for - knowing the architecture of the bile and
pancreatic duct system, sphincter of odd function, probably to put in a stent and most important is to get the sample of the bile for gram staining, culture and sensitivity. Upper GI Endoscopy and
barium meal may also be required.
Another reason of caecum inflammation causing this problem is a possible diagnosis Typhlitis.
Get a course of an antibiotic,
metronidazole and probiotic to see the results.
I would advise you the following"
Colonoscopy as the first investigations.
Tests of blood, urine and stool.
CT scan of the abdomen.
All these investigations will help us to get a perfect diagnosis to get a proper treatment plan as you have been suffering for the last one and half year.