GOOD MORNING ALL!
Diabetes is an Autoimmune Disease. It often runs hand in hand with either Hypo or Hyperthyroidism. The Thyroid Stimulating Hormone TSH controls the METABOLISM of every ORGAN in your Body.
My opinion, it should be a Test all people have by or before age 30. Highly Familial, like Diabetes.
If you are, you may find improvements to where your Pancreas, heart, blood pressure improves and Meds are lessened.
You will ask your Doc to Draw one small vial of ALL 3 of these:
TSH, FREE T3 and FREE T4. If you are feeling Sluggish you're most likely Hypo...aka Chronic Lymphocytic Thyroididtis, also aka Hashimoto's Thyroiditis.
Just an FYI. Early greying hair is a visible sign.
Good Luck to feeling better!