Hello ayalsnan.
I'm sorry about all your issues.
You must know that healing is very difficult when thyroid and adrenal functions are suffering.
As long as these functions remain unregulated or under-regulated, the body's capacity to heal is compromised.
In addition, in light of the Diabetes insipidus, there's suspicion of underlying pituitary or hypothalamus dysfunction or genetic-related issues, which must ruled out, before anything else is done.
This is a complex case and most doctors, including specialists will only treat the resulting consequences and symptoms. This is usually a short-term fix, while the overall situation worsens.
Please post more information about yourself, age, country, short medical history, medicines, typical diet, any test results including lab ranges, etc.
Best wishes,
Niko