I stopped smoking marijuana & cigarettes 2 sundays ago (August 10, 2014). I was consuming a lot of tobacco and marijuana everyday for nearly a year. It helped me have bowel movements. I have been off and on the substances for 5 years. Before then I had similar problems when quitting, but I believe it is because I have transformed my body into relying on marijuana and cigarettes. Ever since I quit on august 10th I have not been able to have a regular bowel movement. When I do try and force it out, it comes out thin & rectangular and it is definitely not all of what should come out. I feel tired and sometimes get a headache from being so full. My farts smell terrible. My mom s side of the family including my sister has constipation problems as well. My grandmother died from colon cancer at age 47. The only thing that helps me are laxatives and prune juice. I do not get the sensational feeling that I used to have when going. Please help!! Thanks...