Re: Breastfeeding and Thyroid issues
Thyroid function can definitely impact breastfeeding, which is one reason why women should be watchful of thyroid function after birth. You're already watchful, so I don't think you're likely to have a problem: thyroid issues generally impact breastfeeding when mom doesn't realize she has a problem, and isn't being properly monitored or medicated.
Since this is your first baby, I suggest taking a trip on down to the Pregnancy and Birth Options sub forum! Lists of great information, and a great place to ask questions that aren't strictly about breastfeeding, or even ones that aren't about breastfeeding at all.
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
Coolest thing my little girl sang recently: "I love dat one-two pupples!"