Pain before poo

Not yet begun UltraMetabolism Not yet begun UltraMetabolism

Not yet begun the UltraSimple Diet Not yet begun the UltraSimple Diet

Hi,

I find that before I need to go poop, I have intestinal or lower abdomen pains, I notice my stools are hard. I'm following the program to a tee.

 Do I need to drink more water? Exercise more?  Why does this happen?