Hello, I have been with type 1 diabetes for 30 years, and 20 years ago I spent the same thing for a long time.They came to diagnose chronic fatigue syndrome.After visiting many doctors I finally started treatment with antidepressants and sleep.Improve with time and now I ever have some outbreak but better.I do not know if it can be related to diabetes, perhaps it is the most stress diabetes etc.Cheer up!!!Maybe something similar to mine happens to you.That thyroid and cortisol also look at you well ...