What Causes Bowels Immediately After Having Food?

I feel of going to toilet after every breakfast?And also been there i still feel that i have not completed the stooling.Please help me out so i dont get late for a job. I also cannot eat foods at hotels or rather spicy foods.If I do so I feel pain while stooling.So I always have to eat foods that are not spicy,oily and no chillies. Please help me out