I was diagnosed with Hashimoto’s about 3 years after I was diagnosed with T1 (32 years ago)…however, I developed T1 on the heels of a high-speed, head on automobile accident…so I could have developed Hashimoto’s at the same time, and it was missed.
At the time, my endo put me on Synthroid…and my body didn’t like it at all. I had several side effects–like rashes, headaches, and hair falling out. When I told my Endo she said to just stop taking it and wait until I was fully hypothyroid.
Fast forward 25 years, and I discover not only am I hypothyroid, but the antibodies have destroyed my thyroid…no longer making any hormone (TSH 86) I didn’t want to go back onto synthetic medication so I did research and discovered Natural Desiccated Thyroid. I had to find a functional doctor to prescribe it, and it took awhile to find the right dosage…but it has no side effects for me and works
I read one British study that identified the Epstein-Barr virus as being a trigger for autoimmune attacks on both the isles of Langerhans cells and the thyroid.
The best reason I know to get antibodies tested and get on effective medication if necessary is that–for however long I was without any thyroid hormone in my body–stressed the adrenals significantly and caused adrenal insufficiency for me.