Hi, I had a baby girl 10 weeks ago and I also suffer with an under active thyroid. I take 100mcg thyroxine daily and my last bloods 4 weeks ago were apparently 'slightly out' but not enough to make a change and as I generally feel ok I was happy with this. The last few days I have noticed my hair falling out a lot, I didn't think much about it coz I know it's normal post pregnancy but today I have noticed a bald patch on my head! I am terrified that this is going to spread and I will end up bald. Are bald patches normal after pregnancy? Or could it be my thyroid? Don't want to bother the gp if there is nothing I can do about it but if there is something I can do then obviously I want to stop it getting worse.