The way I understand it is like this: we accept that our autoimmune system attacked and destroyed our beta cells that produce insulin. We accept therefore that we have a malfunction in our immune system.
At some point, this autoimmune defect can and often does attack and destroy the cells that produce thyroid. TSH is not high thyroid, TSH (thyroid stimulating hormone) goes UP when our ability to make thyroid goes down. Think of TSH as blood sugar.
Diabetes can and often does attack cells that produce testosterone, it can and often does destroy cells that regulate vitamin D manufacturing, and the cells that help us absorb vitamin B12.
Good news: thyroid is easy to regulate you take synthetic thyroid, once a day without food, and you’re done - easy schmmezey compared to controlling your sugar!
Testosterone can be taken as a pill or absorbed throught the skin.
B12 is a vitamin, (that you can’t take too much of so I take a LOT). D can be a little harder because you have to take a lot for it to work but I have a script and take a pill once a week, plus I will go and get a little sun now that spring has arrived.
hope you are okay Grace!