I have suffered from constipation in a very bad way for a very long time. I don't know what this exercise is called but a friend of mine recently told me to kneel down then sit on the back of my legs as though I was sitting on a chair and wait for the sensation that I want to go comes. It works like a charm. The first few times took about 15 minutes. After that, it happened in about 5 minutes. Works every time. If the floor is too hard, sit on the bed or sofa. Can't wait to hear your experiences.
Proper positioning has helped me in combination with taking enzymes. It looks like I was not digesting fats very well. I sit in this kneeling position in the mornings and it helps get things going...