It sounds like you have a bad case of constipation
you have constipation.....try eating alot of fruits like pawpaw and water,soups.
you may be constipated, which is very common with people who have poor diets, you didnt' specify what your diet consists of, but i'm assuming like most american's including myself it's not entirely healthy, or else you wouldn't have posted this. Either take a laxative, or drink prune juice, try drinking more water and exercising more frequently, you'll notice that slowly you'll become more regular. Hope this advice helped.