@User55555 please try not to fret, although I know it is hard.
Unlike you, my own DS was a terrible biter at nursery although not with me … it started at around 17 months and I really felt like it was never ending. It was mortifying and upsetting and I questioned my parenting, questioned whether others were questioning my parenting, it was horrible.
It did taper off at around 20 months and although there were incidents leading up to him turning two they were very few and far between and <touch wood> since he’s turned two I’ve had no reports of him hurting children at nursery. However, I do find that with me he can and will push other children to get at a toy or equipment. All I can do is watch him like a hawk and move him away if it looks like he’s going to push.
When I’ve searched on MN, there are very much two schools of thought: one who haven’t had children do this and are dismayed by it and do seem to think a telling off or firm No or the much loved on here Boundaries are the solution. All I can say is that they are ineffective here and while I don’t permit DS to hurt other children I’m also not going to do pointless things he doesn’t understand to make him feel a sense of shame or unhappiness. I say a firm no, we don’t push, or I know you want it, but we don’t push. He completely ignores this
and would still shove the other child given half the chance!
I think it is a waiting game and I for one can’t wait for it to be over, but it is normal. Something I have noticed with DS is that he is quite tactile, he was cuddling a baby at a group last week which was very cute but then went to cuddle another girl who wasn’t as enamoured with his attention and so it nearly turned to a push (I ended up having to get under a parachute to ensure this!)
DH was apparently the same and is incredibly gentle, soft and chilled out now, and has been since about four! It’s a phase … and in the meantime 