Having had what my Dr thought was Diverticulitis I went thru a few rounds of stuff,finally got to see a real GI Dr.
I was surprised that he said to start with no drugs but to first try over the counter things first and see if it helped and if not he would get more into it,he also gave me a handout on foods to avoid and ones that were ok.
First off he gave some samples of
IB Gard and also to use
Citrucel once a day,it is a good fiber source with no gas.
I started with 2 tabs of IBgard 30 min before each meal.Within a week almost symptoms were gone,returned to Dr then went to just 2 tabs before supper and have been good since then.
I am not a Dr but as you asked for any advice that may help,you might ask your GI Dr about this,all I can say it worked for me,good luck.