Teething already?

My baby’s been crying all the time. It doesn’t seem to be colic and she’s been pooping fine. She doesn’t latch long than how she used too and all she does is bite her fist or fingers. She’s been making this weird clicking sounds with her mouth shut and also drooling way too much. I tried putting dentinox on her gums and she’ll be at ease within few minutes only.

She’s 15 weeks so is it possible for her gums starting to hurt?