After my sigmoidectomy (and ostomy reversal and failure) in 2016 I finally got to recovery. Took months. Actually years. I had diarrhea terribly. Interrupted my life. Once it started it would not stop. But I started on loparamide. Then I found the right regimine of TARGET specifically, probiotics (30 billion), basic target brand psyllium fiber and once my system adjusted to this, my use of antidiarrheals dropped dramatically and I was able to use them sparingly after a while and I had normal BMs and everything. Granted more issues formed that caused the opposite problem after a while (not due to the meds but healing and scarring issues).
But that's what worked for me. I had spend years finding it out for myself and my body. Once I did, I felt significantly more confident leaving or travelling or anything really. Good luck. I'm only 35 and have had to discover this journey.