Not sure if this is the right place to ask but looking for any help or advise please. My son is 18 months old and he has always been a terrible sleeper but within the last 2 weeks, he has been sleeping through the night in his own bed. Nothing out of the ordinary there BUT he now sleeps until I wake him in the morning so sometimes closer to 8am. He goes to bed at around 6pm because he is seriously grouchy come the evenings even though he does also have a day time nap, approx 45 mins to an hour (again I sometimes wake him). Once he is up, he cries to want to go back to sleep. He will sometimes throw himself on the floor and just lay down as though he is tired still. This is not something he would normally do but has done for 2 weeks. He refuses milk at night time now but does still have a morning bottle approx 4 or 5 oz. He has been sick today but no temp and is off his food and again, refusing any milk. My gut instinct tells me to book a doctor appt tomorrow morning for a check over but just wanted to see if anyone had experienced similar? Or some reassurance that this isn’t unusual at his age? Anything would be appreciated, thank you!