I was diagnosed with Hashimoto's 3 years ago and the only thing I have found to keep down the goiter and lump in my throat is a gluten free diet. And I too have heard that potassium and magnesium helps with cramps. I have been lucky, I guess, because I have always taken the potassium and magnesium so I have not suffered from cramps.
What has been bothering me the worst lately is my hair falling out and my skin being so dry. When I wake up in the morning my mouth and eye balls are so dry. If anyone has tricks to help these things. I have heard about a shampoo that keeps your hair from falling out NISIM. I have not tried it yet but I will. If anyone out there has tried it, please post what you thought of it. And as soon as I can get my hands on it, I will post too.