fussy baby

hey everyone! my baby has been more fussy than usual the past two weeks. and of course i start to wonder what i’m doing wrong. i have been breastfeeding but thought maybe she isn’t getting enough to eat. (she is having more than 6wet diapers a day and has been gaining weight at every checkup so far) but i decided this morning to start pumping and giving her a bottle. at my 9:30am pump i got 2.35oz and two hours later i pumped at 11:40 and got exactly two ounces. she was 3 months old the 19th. she has also been doing this new thing making me think she’s teething but i think it’s too soon. she has been gnawing on everything and drooling everywhere. plz give me some advice and suggestions!! am i just suddenly not producing enough?! thanks in advance🙃