Many thanks for your reply. I think your right, I think that maybe the water isn't getting to other parts of my colon hence its rapid expulsion, I may schedules a colonic next week. I just repeated a 2nd enema today, 2 litres, and it was expelled in 2 waves.
I am getting very stressed about the digestive problems. I think I might have to change doctors as my current one doesn't seem to be very helpful when it comes to colon matters, I get the impression she thinks its in my head, which is not the case.