Everytime we go out to swim or do anything, I keep the insulin surrounded by ice packs. The pen is usually in an insulated bottle pack with several small frozen gel packs in them. Oh, it's really hot here right now, it's in the 90s (F) / mid 30s (C). Next day, ~K's usually running high. I'm thinking it's the insulin, because no matter how many times I correct, her numbers barely budge. I know I'm not supposed to keep the insulin exposed to very high heat. But it's surrounded by ice packs, inside an insulated pack, inside a lunch box (also insulated). Or... is keeping the insulin in cold temp, then in room temp making it go bad? I've been changing vials in the pen every 6 days. At the rate we're going, her one year supply won't last us a year! Any thoughts? Thanks.