I really feel you on this, thyroid issues during pregnancy can be so overwhelming especially when you start seeing so much hair fall and do not know why. Please do not worry alone with this, it is really important to bring this up with your gynae or PD as soon as you can so they can check your thyroid levels properly. Many mummies go through this and with the right care and monitoring it can be managed well throughout your pregnancy. You are not alone in this, and getting the right medical support early really does make a big difference.