My son's carb ratio for dinner is 1:10 (Humalog), he had 6 units at dinner to cover for food only, his BG before dinner was 92. After dinner, he went outside and played basketball for about 20 mins. He came in, laid on his bed and called for me..he dropped to 63, he pretty much always feels his lows. Anyone have an opinion as to why he would have dropped so quickly? He did eat all of his dinner. Maybe because it's Springtime and he's more active? What do you suggest we do...adjust dinner carb ratio on these nice days when we know he will be outside? I'm thinking yes, but not totally sure. Thanks everyone, I truly appreciate all the input and advice.