My baby eats little!! Help!

My 3 month old has never liked to eat... even in the hospital she would nurse for 5-10 minutes and want to stop.

She is low on the growth chart, but doctor doesn’t act very concerned at this point.

Just wondering... has anyone else’s baby only eaten 15-20oz a day at 3 months instead of the 24 or more suggested oz a day?!

She is meeting all of her milestones well, just looking for some reassurance about her eating habits and weight!