If you are feeling pain when you are asleep, then you may see such dream. Maybe, your position of sleep was not correct and therefore, you have seen this dream. If you see pain of someone whom you love, then you are concern for the person like husband or children. Seeing pain of someone is common thing and as it is matter of emotional and physical, then you may see such dream. You should not worry of it. If you are not passing happy life, then you may see pain in your dream. If you are worry of something, then you may see such dream.