Is my girl teething? 😖

Sam

She’ll be 5 months on the 14th, at her 4 month appointment her pedi said he didn’t see any signs of s incoming tooth but...

She is drooling a lot, constantly gnawing on her fist, she’s eating 7oz per feeding but she eats some then chews the nipple over and over until she’s done eating, or she’ll eat 3 or 4 oz then finish it 30 mins later. 😣 is this a sign she’s teething or is this just normal?