My ds wakes up around 4am every night screaming. Nothing I do helps or settles him. I have to lie him down on the bed and give myself time out as I'm at my whits end on what's wrong with him- he doesn't want feeding or cuddling or anything. He's on a special milk for cows milk allergy and recently come off omeprazole as I don't think it was reflux. What could it be at this time every night?