Cried at Middle of the Night

Around 2 AM, William woke up and cried out loud.  Usually he’d just whine to let us know that he’s hungry; and it’s time for another bottle of milk.  This time we were just not sure why he cried; he cried like he was hurt.  I tried to hold him but he refused; tried to carry him out of bed but he wanted to put back to bed.  Finally we gave him a bottle of milk; at first he pushed it away so I put it on the headboard, then he stood up and got to it. So I guess he was hungry.  It’s just weird that he rarely cries like that when he’s hungry.  Last dinner he didn’t eat much so might be that was the reason.