I was diagnosed around 2005-6 and it was technically "Hashimoto disease." I had dizzy spells, fatigue, mood swings (mostly happy and ANGRY), weight gain, memory issues, and a few other things. I was prescribed Cynthroid and have been on it ever since. In my experience it has helped to stabilize things and make it managable, but I can't sit aroud either. Just to maintain my weight or lose just a couple pounds I have to work out as much as someone who is working to lose a LOT of weight. My moods are more stable, but that may also be some of the other meds I'm on for just that purpose (PTSD).