-My baby's father had 4 teeth by the time he was 4mo

-She's drooling up a storm

-Gnawing on anything that she can get her hands on, including her own fists (not just sucking)

-She's much fussier than usual, especially at night, and making cries I haven't heard her make before. Lots of whimpering and whining.

-Her eating habits have completely changed. She latches on like she's really hungry, feeds for maybe 10 seconds, then breaks the latch to whimper and cry as if it hurts to suck, then relatches like she's super hungry all over again, and repeat. She normally eats every 2 hours but now she's trying to feed every hour and I think it's because she's not getting enough from the breaking off and crying cycle. Then on the flip side she's been doing this weird mid afternoon 45 min sleep feeding session, when normally she feeds for only 5-10 min.

Thoughts??? Help!