Any experience of teething causing vomiting?

[AmIWhatAndWhy]

DD is 2 this month and has been really sick, the GP has said it's due to her getting her back molars.

I suggest your GP is slightly dimwitted in that case. It's much more likely to be a bug than be molars. Unless she's getting them so far back they are pushing on the back of her throat and triggering the gag reflex

Poor girl. Hope she feels better soon

Well I'm not a doctor and I probably don't know what I'm talking about , but whenever my dds were sick or had the runs, you could bet that after it had all finished, we would look and a new tooth had sprung through.

Coincidence maybe. I think not. As Arthur C Clarke might have said...