Sally, everything you said is ditto for me. I have a consult going in to colorectal surgery at Mayo. I have had all of the normal GI slow motility tests done and taken all of the routine meds usually prescribed. I have to add to the Linzess 145mcg , Senna, Slow Move Tea, magnesum, sometimes magnesium citrate Liquid. If I add MOM it is more severe diarrhea. Actually it's diarrhea or nothing, but MOM will work for sure if I add it. I also take Bentyl 10 mg for the abdominal pain/bloating. The GI doctors I have seen in my area, do the routine tests and drugs and now told me that I need a totak ciolectomy with ileostomy. None of them "look outside of the box".
I read on the Mayo Rochester website that the colorectal department works with the GI motility clinic is which under the gastroenterogy department. I have been avoiding the surgery option for over a year.
I hope you are doing better and figured some of this out. Thanks for your post.