Hello lybrate-user I can understand your trouble, its my pleasure to answer you. See, frequent urge for stool especially after taking food is a sign of IBS (Irritable Bowel Syndrome
) but as you are suffering for 4 long years, the underlying cause may be different & need some further investigations. Such problems are well manageable by homeopathic treatment. I advice you to try homeopathy for your ailments & see the result, with in few weeks you will get rid off this trouble. Take care.
~ With best complements.