smelly Congrats on winning the prize but oh what a twat that person is for mentioning your weight!! I really hate it when people say hurtful things like that. I've had a couple of instances where twats have been horrible about my weight. One time was when i got on the tube in and went to sit down next to this random guy. He was sitting there with his legs wide open and when i looked at him as if to say can you move your leg please, he just said "you're not sitting next to me - i dont want to get squashed". I was sooooooo
and also very very
. Some builder type bloke (always much nicer than suits, i find) said "who duz 'e fink 'e is? 'E's a bit of a twat aint 'e?". I held it together until i got into the office and then just went into the toilets and cried my eyes out. :( Another time i got a comment about my weight was when i was at my thinnest in years (about 11 stone and a size 12 top 14 bottom). I exercised loads and felt really good - until this car drives buy me slowly, the window winds down and some bloke shouted "hey, chunky!" and then drove off again. I am semi-convinced that this is the one comment that is stopping me from losing weight a-la-self sabotage because in my head i'm thinking that if people still think i'm "chunky" when i'm at my slimmest, then what's the effin' point of it all?? So yeah - what i'm trying to say is that i know how you feel and try not to let it get to you (easier said than done).
I'm wondering if perhaps i should hide my scales on a temporary basis and just weigh myself in Boots or something. I'm not sure if weighing myself daily is a good thing or not because if i lose a pound or two over night i tend to go into "oh i'm doing ok i've lost weight, i can eat something bad and get away with it again" mode. If i'm just left guessing whether yesterday's food was a good day or not, I wonder if it will make me choose my food more wisely and get me back on track to losing weight again. 
Sorry, am waffling. Thank you for reading if you've got this far and not falling asleep!! :o