So happy for you!Twins must be awesome! I'm glad that you've had the success that you've had. You will give hope to anyone with Hashimoto's who reads your post!!
In my case I feel that I was successful too, even though I lost 3, I was blessed with 2. I know several couples who can't even conceive (for reasons other than thyroid disease). My biggest frustration is in not having control of my body. I feel like it does what it wants and I have to go along for the ride! Such is life!!