My DD is 6 weeks old on Friday. Has been perfect with her bottles for the last month, having her last bottle at 9pm and waking up at 6am (in the last week it's now changed to 7am!) but now, even for her first bottle of the day where you'd think she'd be starving, she screams for her bottle as she always has and then falls asleep after an ounce. I've tried everything..changing her before, half way through, stopping often to burp, sitting her up, everything to wake her up enough to want her bottle again but I have no influence over whether or not she has it. She sleeps for a little while then wakes up to scream she's hungry. Bottles used to take 15 minutes to finish and now they either take forever..or she just doesn't finish it! She now has 0 routine and I can't predict when she'll be hungry next. Please help!