Anyone else have a tiny baby? (Not their first?)

Ch

My first kiddo was 8.5, my second was 8.9, and my third was 6.12. All 27 months apart. All born on time.

My first two stayed in the 75-95% forever! My son is skinny, but in 95% for height. My daughter is 75% is height and weight, and my newest cannot seem to stay on her curve!

She is 14 weeks and is now down to 2%. She is happy, hitting milestones okay, and really healthy otherwise. She had tongue tie, lip tie, and cheek buckles removed via laser (a month ago or more?) and has been taking a bottle fine ever since.

She is on a high-calorie diet and is taking the rec. amount of feedings and having the right amount of poop/pee. She just isn't gaining weight. While she is "heavier" at each appointment, she is dropping on her curve, and fast. She is still wearing newborn diapers!

I don't even know if I have a question. And I'm not concerned, to be honest. She is a smiley little thing and sleeps through the night. But we're not alone, surely?