I'll try to make sense as I'm a bit all over the place. DH just got back from dropping our boys off at nursery and he said that the nursery teacher pulled him aside for a chat. He can't remember most of her exact words but he said she used the phrase "I don't like to use labels but..." and then went on to talk about some occasions when DS1 has been particularly stubborn and single-minded about things. This has been a bit of a persistent theme since joining this nursery (and for his entire life really but they are the first people to have brought it up formally - he has been to 2 nurseries previously due to house moves). We've had a few meetings about it and they have been trying certain techniques to make things easier, which they themselves have said improved things.
To give an example of the behaviour she is talking about, a couple of weeks ago DS1 wet himself but we'd forgotten to replenish his spare clothes supply so they only had other clothes to offer him. He flat out refused to put any of the other clothes on. This has happened once before and they called me to bring more in. However this time I couldn't answer the call as I was in a meeting and didn't have my phone with me. By the time I called back (maybe 45mins later) they said he'd agreed to wear the clothes they offered him. Other than this, the behaviour tends to be things relating to not wanting to transition from one activity to another.
I'm just really thrown by this "labels" talk! The only label we can think of that she might mean is ASD. I honestly don't know a lot about ASD but I thought that there was an important element around sociability and empathy. DS1 is really very sociable, takes a bit of time to warm up but loves playing with other kids and is very fun and playful with adults. He's also got a decent amount of empathy for a 3.5yo. E.g. I got upset about something once and then had to do his bedtime. He could tell I'd been crying (I'd stopped actually crying by that point) and said "Are you sad Mummy?" He's really sweet with his little brother as well, he'll give him a cuddle if he falls over and things like that.
So I guess I'm asking two things. Firstly is there any other "label" that the teacher could be talking about that we're not thinking of? Secondly does anyone who knows a bit more about it than me think based on my description that DS1 could be ASD, or is the nursery teacher being a bit overdramatic (she does have form for this, but not on such a serious topic) and DS1 is simply a stubborn and strong-willed toddler? We'll obviously have more of a conversation with her about it to clear things up (DH was caught a little off guard and was trying to get DSs into nursery at the same time) but just thought it would be helpful to have some input from the wise minds of Mumsnet to help us think it through.