Yes, he's happy.
He arches his back a fair bit, which can be a sign of reflux, and doesn't like it when the sick is nearly solid curdled milk- he gags on it's way up and pulls a face as he seems to chew and swallow it.
But he is sick after every feed, and in between too.
I'll take him to be weighed again in a few weeks and see. He doesn't seem overly upset, and is alert with fine nappies etc.
Spotty DD does 2 full days at nursery, 8 until around 5.30 and is fine, if a bit tired & stropy once we get home. She is 2.5, so I think a similar age. Could you try it for a few weeks and see how she goes?