Hi all.since last 3 days in afternoon my son wakes up from nap crying loudly.

Then I hold him and walk in the room then he falls asleep back.my concern is why cries this way??

He love to sleep in sides if make him to sleep on back he again turns on side.

What to do ?

@Dr.Dhanya Prajesh ; @Dr.Sonali Shivlani @Dr Payal M ; @Dr Shilpitha Singh plz help.