Tired all the time.

I've been struggling with fatigue for about 20 years, the doctors always ran the same thyroid panels and tested for diabetes and told me I was fine.  Well I'm not fine, I am in pain all the time and exhausted. Also, my weight has jumped up over 40 pounds.  I eat well most of the time, I get rest, and I am not depressed... So I found this article... I believe this might actually be enough info to get some answers. I am going to print this out and go to my new doctor and hope they care enough to get to the bottom of this.
https://chriskresser.com/5-thyroid-patterns-that-wont-show-up-on-standard-lab-tests/