DD is almost 18 months.
She is talking lots already and gets VERY insistent that you acknowledge what she has said - eg if she says "tree, green tree!" she will repeat and repeat and repeat it until I say "Yes, that's a lovely green tree" etc. She does this even if I'm talking to someone even if I ask her to wait a minute.
On a similar vein, her little friends of the same age are barely talking. She has been talking since about 10 months, so not massively early, but now has a huge vocabulary (I lost count after 200) and is recognising numbers, colours, and putting words together "I down", "more milk" for example.
She can also count to 3 on her own, and to 6 with help. I'm trying not to be PFB, and don't want to google (as I have anxiety problems and not googling is helpful for this) - but is this normal for her age?