Congrats, Wabbit!
Always good to know if you have hypothyroidism. My sister kept going to her doctor and asking to be tested, and he kept telling her no, it was just a matter of dieting and exercise. By the time she dumped him and got another doctor, she was over 400 pounds! Now she's on medication, and has lost about 75.
(I got myself tested, too....nope, all my fat's natural. Darn.)