I've been able to see the whites of most of DDs back teeth since she was 3 or 4 weeks old. The last few days she's been really sleepy she today she's off her milk a little (keeps biting the teat and getting upset) and very drooly. I checked and can feel one of the teeth, the gum around it looks a little pink but nothing major. She's recently started really chewing her hands, but hasn't mastered a teething toy. She'll also bite and suck on any finger, face, arm etc that comes in reach.
Could she be teething this young?
What's best to settle her / encourage the use of the teething toys?