Hashimoto's disease
"I was diagnosed with hypothyroidism at age 14 although I had a high TSH (in the normal range) since  I was born. I was treated with Synthroid and levothyroxine for the past 7 years and I never really thought about how it was affecting me. Within these 7 years I gained and lost and gained again 75 lbs which was due to the depression that Synthroid was causing. I recently began feeling so bad and decided to stop Synthroid and asked my doctor for Armour...one month later and I am as happy and optimistic as I used to be before Synthroid. I have also lost 12 lbs within a month (with proper diet and nutrition of course). I have had no side effects on this medication and I am 100% happy I decided to switch."