4 yo DS is going through a phase of waking up crying uncontrollably and unable to calm down. Thus happens after being asleep for an hour or so. Will eventually settle but then the same happens again a short while later and he's pretty unsettled all night.
He goes to bed fine and happy and has been a good sleeper until now.
When we ask what's wrong, he won't say anything or will say various things hurt (last night was cheek). He's recently started school.
Has anyone experienced this or have any thoughts on why this is happening/what we can do?