Consider getting tested for celiac disease which is autoimmune and is systemic. You do not have to have any GI symptoms. I personally was just anemic. Autoimmune symptoms can overlap, but it is easy to rule out celiac disease with a simple blood test. 1 out of 125 people have celiac disease, but only 20% are diagnosed! It is also strongly linked to Type 1 diabetes and Hashimoto’s thyroiditis. Why is it not being diagnosed? Old school suggests that malnourished kids tend to have celiac disease, but now researchers know that it can develop at any age, size, or shape.
I have Hashimoto’s. My nodules and enlarged thyroid resolved once my celiac disease was treated. Unfortunately too late to save my thyroid production. I am on hormone replacement for life.
Be your own health advocate! This is NOT in your head!