Ladies help this overthinker

I’m scared. I have thyroid problems (Not sure if hypo/hyper). I take levothyroxine for it and throughout my pregnancy, I had bloodwork every month to check levels.

I now got this repetitive thought that my baby of 7 months might have thyroid problems and I don’t even know. What are signs that she is having thyroid problems like me? I feel so guilty and feel like it’s my fault if she were to get thyroid problems as well. Help anyone?

She is meeting all of her milestones great.