Bowls

Miranda
Does anyone else when they need to poop or they're constipated able to feel their lower intestines or colon? When I need to poop or I'm constipated I feel a little tube shaped lump on my left side by my hip. It goes away when I poop. Anyone else get this or should I go to the doctor? 
I would go but I don't want to go pay a $30 to be told I need to poop ya know?