I need help, I was late getting my ds jabs (2nd lot) up until 3 weeks ago when he had them he slept 10 to 12 hrs and seemed fine with his milk, he now gets tummy ache at meal times, has runny poo sometimes or green and solid, he gets bad tummy at night time, I can hear it grumbling and he is sooo windy, almost like a colicky baby, please help...