I have been experiencing slow motility transit for more than 18 months. I underwent two colonoscopies to rule out any obstruction, but the results showed that the problem is caused by a redundant function. Although I tried using Linzess, it did not work for me. Currently, I am taking Motegrity (1.5mg), which is okay, but what really helps me is a tea called Smooth Moves, which is made from Senna Leaf. I take it every night, and if I miss a night or overeat, I use two tea bags, and after about 12 hours, I get the desired results. You can purchase this tea from any health store. Best wishes!