Are You REALLY................

Roraboosh

I have to say I've really been open about my weight lately, I have a website that my friends can follow http://roraboosh.yolasite.com
I recently showed my partners mum who is Amazingly healthy and amazing in general.
I've put off going to my partners home town to meet his friends and family because I'm ashamed of what they will think of me and my boyfriend for being with a "fat" girl.
So I showed her the site and her first comment was "are you really 21st!!" (nearly 300lbs) I wasn't offended by this, she obviously thinks that I look like I weigh less, which is great, but the truth of the matter is, I really am this heavy and its wrong, hearing somebody say this really opened my eyes as to how over weight I really am. She was really supportive and completely backs me 100% it just made me think.

Has anyone else been shocked/ashamed to tell people exactly what they weigh?
Should I keep it to myself, will people think bad of me?