Hi, sorry if this is the wrong place.
DS(4) doesn't show much emotion other than happiness at nursery. If he gets hurt, he'll hold his cry in. If he's feeling sick, he won't mention it to staff and will wait the until I collect him to tell me he's feeling unwell. He's even waited to throw up before! He has none of these issues at home, so I'm trying to figure out what's going on as I'm getting worried about him. He's only been at nursery since August, starts school this year.