Help!

Hi everyone can someone please help me identify what my baby is going through.

So she usually only wakes up about twice in the night and I’ll soothe her and she’ll go back to sleep but the last few nights she’s been waking up sooo much she woke up 4 times in just 2 hours of sleeping. She’s usually fussy when having her bottle but also the past few days she’s been so much fussier. She’s been drooling since she was 2 months and had recently started playing with her ear a few times a day.

She is 20 weeks now, 4 and a half months.

Is this sleep regression or teething? Please help