I 28f. after 1 or 2hrs of eating i am going to motion. it is happening 4- 5 days a week. some times i find some food particles in stool. ?

Not unusual : Bowel movements just after eating are fairly common. If it happens excessively it can be a sign of irritable bowel syndrome. Sometimes this symptom responds to a simple measure of adding more fiber to the diet. In fact taking taking a fiber supplement such as Metamucil once a day often solves the problem. When you do, drink more fluids also. Food particles in the stool are not abnormal. Good luck.