Have any moms experienced

Have any moms out their experienced taking thyroid medication while breastfeeding?? Did it help you?? Did you notice a difference in babies Behavior with your milk? I went to the doctors today because of my irregular period , weight gain and other symptoms that maybe because of hypothyroidism. I’m curious to know if any moms have gone through this and if you could share your experience please . That would be so helpful to me as I am going through somewhat of a tough time with my body. Thank you so muchhh