Let us know how the interviews go!
I am overweight, but compact, for lack of a better word

. I wear an 18, but I weigh a lot more than an 18 ought to. I was a 22/24 at my highest.
I most definitely have lost jobs because of my size. For behind the scenes jobs it doesn't matter a bit -- I have been successfully employed for most of the last 20 years (except time off for critical illness, etc). But I have made a few attempts to move from my field into a related one that would require me to be a media spokesperson -- folks who end up on TV news a lot -- and I absolutely have been discriminated against that way even though I aced the interviews and got repeated callbacks.
I have a girlfriend who weighs over 350 and it took her a year to get a job, because she looks fabulous on paper but when people meet her their faces fall and they find excuses not to hire her. In a wonderful case of positive karma, she got hired by an eating disorders group, finally!
I don't mean to be a downer, just wanted to add a "voice of experience," for the little it's worth.
Good luck to you -- PM if you want to talk/vent.
Candy