LO has only wanted to eat for about a minute  at a time for the past 12 hours. During the night he'd wake up to eat but pass out about two minutes later ( after eating for a minute) nothing I did succeeded in waking him back up. Now he has been up for 6 hours and still only wants to eat for a minute only now it isn't because he is falling asleep. LO is 5 weeks old and just went through a growth spurt.