gwynhefar | My love/hate relationship with milk

I *love* milk. It's cool and smooth and comforting. However, I've noticed in the last year or so, that if I've gone without drinking milk for a week or two (generally because I ran out and was too lazy to pick up more), when I do get more, the first glass or two messes up the plumbing as it were. It's quite frustrating. Once I get used to it again, I'm fine, but it's like I have to spend a day or two sick as a dog to get my tolerance back. I guess the lesson is not to allow myself to run out of milk, but I've never been known for my common sense.