I understand your frustration, but it sounds like you got some answers. The thyroid levels and liver function make it possible to try other medications and it may make a difference in your day to day life.
I would still pursue disability. 4-5 hours is the max I can work every day and I only work 3-4 days a week. It allows me the time & energy to take care of my family.
Keep your head up, better days will come.