I think I might have insipidus diabetes?

I want to test for Insipidus diabetes, but I am really shy about telling my mom I think I have it, because I have broken many bones, and my knees are bad so they always get hurt, but she always thinks I am overreacting when I am not. How do I break it to my mom. Plus: I have done research and am almost positive Insipidus Diabetes could be the answer