Hi everyone so at the start of March our little boy who's 20 months had bacterial tonsillitis so was given antibiotics for 10 day...he finished these and then 2 days later the tonsillitis came back...he had another 5 day course of antibiotics again and finished these 4 days ago...since finishing these every night he's waking with tummy ache or trapped with and his poos are like hard pebbles...we're having to give him some calpol and then it settles...he has a bottle of full fat milk before bed...could he have a lactose intolerance etc thanks