Hi.
There is always a good catch in an elucidate history as provided by you.
Your history of ''foul stools'' tells it all.
Read and understood all your history related to 2 craniotomies and severe
abdominal pain after 3 days.
This is the time you must have undergone the super-added intestinal infection as we call in out medical language, and must have been overlooked by all.
I would suggest you the following actions:
-First of all I will order fr examination of the stools for 3 consecutive days.
-Routine test sof blood and urine.
-Start you on a 5 day course of an antibiotic and
Metronidazole and probiotics.
-Probiotics to be continued for a long time say at least a month.
I am sure this will solve your problems to a great extent.
If there is not relief then I would go for further tests of
CT scan of the abdomen and
colonoscopy to find the root-cause. and to give you the treatment as to get a cure.
Remember to Avoid the
Ciprofloxacin group as you have undergone craniotomies.
I hope this answer helps you