Dr. is concerned about little ones weight gain..

My little girl just had her 9 month appointment and she went from the 3rd % to just under 1% for her weight! She’s always been small( I’m

only 110lbs and just 5ft tall) but her doctor seemed concerned and wants me to give her formula after every time I nurse her. She’s been exclusively breastfed up until now (she does eat solids)

The strange thing is she’s not a fussy baby and she’s seems content after I nurse her! I cried so much today and just feel so overwhelmed!! Has anyone ever gone through this? She’s 13 pounds and 25 1/2 inches..

How much do your little ones weigh?