Nat woke screaming at 12:30, and was very tearful. He was at 17.6 at bedtime, so I thought he'd be okay for the night. Nope- 3.3, so we spent a miserable half-hour with him crying and me insisting he eat icing and drink juice. So I'm still really tired, even though Thomas slept. Nat seems a lot better right now but I hate overnight lows.