Dexter has become worse the past few weeks and we have blamed it on lots of different things tho today my partner said it's always after lunch and I have crisps and bread and dairy free vitalite. Turns out the crisps have lactose from milk in them ;( (seabrook beef) it starts a hour or three hours after I've eaten I've been eating them around two weeks somedays he isn't so bad. How long do u think it would take to get through my milk to him? I feel so bad didn't know milk was in crisps? sorry meant to say he screams on pain with trapped wind type symptoms.