Embarrassed

Hello. This is my first time posting. I am newly diagnosed, about 2 weeks now but I have  spent that 2 weeks a bit stuck. I've read alot of things about newly diagnosed people and how they have told their family. Well I am a mother of 4, I am 47 so the diagnosis for me was such a relief. The family I live with have learnt about autism because basically I have chewed their ears off about it so they are super cool and in the know.....now this is where it gets embarrassing, I felt so understood so I then felt brave to tell my dad's wife about my diagnosis of autism.....she gasped and asked "is it life threatening" ...........oh my days, I feel like I have stupidly ran across a football pitch naked.....I want the world to swallow me up now. My husband laughed his head off which yes I can laugh but why did I even mention it to dinosaurs?! .....