Picky Eater

So my 10 month old was a great eater and would try anything. Now she will pretty well only eat:

Eggos

Toast with peanut butter

Yogurt

Potatoes and carrots (sometimes)

She will eat it all but this is all she will eat. She’ll try new things but just one bite and things she loved before she won’t eat now. She’s not getting too much formula (I know ppl will say this first lol) but I know she gets enough that she’s not hungry. Should I make a doctors appointment or is this normal? What do I do if she won’t eat? I’m worried…FTM of course