My 10 mo won’t eat

My baby is going through a thing we’re she doesn’t want to eat as much as she used to.. she is happy, and active but she just won’t drink her milk much, she’s been drinking the same formula.. she doesn’t like other formula..She likes solids but is done after a couple of spoons.. I also know she’s thinning out because during her check up she was skinnier than most kids but doc said it was ok.

I’m concerned, and would like to know if any of you have come across this and how did you deal with it.

I’m sick and tired of ppl assuming I’m not feeding her.