DS is just 2. He has been going to nursery one day a week since he was 1. He has always really enjoyed it, running in without look backwards. Running away from me when I arrived to pick him up.
For the last six weeks he has been increasingly unhappy when I drop him off. Cluminating in him having to ge prized off me this morning 
I have cried all the way to work, and now I'm stuck in the car park waiting for my red eyes to subside
The staff insist he is fine within minutes of me leaving
He is not a clingy child, quite the opposite. And he rarely cries, which is what makes me upset because I figure if he's crying then he's really unhappy 
Two weeks ago he moved up a room and the staff seem to think this is what's triggered the change, but actually his last few weeks in the baby room were the same. They also seem to want me to just peel him off and leave him, rather than staying with him until he's happier. I know they're the pros and I'm willing to 'dump him' and run if this really is the best way of dealing with it. But I know my boy, and I'm not convinced
The staff are lovely, but this toddler room is chaotic and noisy, as a room of toddlers is. He's not normally phased by comotion. Oh I don't know....
My mother says it's normal, at 2 he will be getting more aware of the world and yes, he is more shy with strangers than he used to be. Is it normal for a child to quite suddenly change from being happy in an environment to not being so?