is it normal to have lower adomial pain every morining before you poop?

this been going on for quit some time every morning after i eat breakfast i would get this really sharp pain in my lower adomial area before i would poop it would hurt so bad that i some times scream ouch ! then once i poop the pain would go away as if nothing ever happened and this happeneds every morning. i have gone to my md and there was really nothing thay could do for me thay said eat more fiber and i did i drink 8 to 10 glasses of water a day and i eat very healthy i stay away from junk and fast food i eat high fiber food and whole grains i stay away from the enrich white flour and stick with the whole grain foods i drink soy milk because iam lactose intolerant i eat raw vegies all the time i also eat raw un salted and un roasted nuts and i take my omegas fatty supplements every day so what do you think why i get this pain ? and i don't drink any soda and that includes diet. i eat fresh fruits as well.