I've started expressing once per day so that my husband can feed the baby one feed overnight and I can get a longer stretch of sleep. We tried for the first time last night and she guzzled the whole bottle down in less than a minute, and immediately wanted more. We're using the lowest flow Medela bottle and he's keeping the bottle nearly horizontal to slow her down. Is there anything we can do? I think there was enough milk in the bottle, but she drank it so fast that she didn't realise she was full.