Fatbgone... all I managed to see in all those posts, was you insulting yourself, over, and over, and over. Stop it, girl!
We all have different shapes and sizes, and I think if I held my breath and sucked it all in, I'd get into a 14 too... I'd just have to breathe at some point and then I would overflow and burst the seams hahaha.
I don't need proof of you wearing anything. Seems to me that you'd only be cheating yourself of the real satisfaction of really managing to squeeze into a 14 if you came on here and lied about it months ahead of it. At least, that's how I'd feel.
At the end of the day, whether or not someone lies about something, makes no difference to me or anyone else, it would only be themselves they were deceiving.
This is the internet, take everything with a pinch of salt and you'll do well.
Chin up