Anything that gets the
colon working can cause
colon pains, and cramping. When the
colon is active is when most people with IBS find issues with pain, cramping, urgency,etc. Thats why early mornings are troublesome for IBS sufferers. The colon wakes up when you do and starts to go to work.
When you do a cleanse like that, you are having your colon work doubletime, therefore it could cause it to start creating pain, cramps or spasms.