Hi and welcome to the forum! I'm new here too.
I can relate to a lot of what you're saying. I too worked at a Fortune 100, corporate America indeed takes it's toll on the weight, back and shoulders. I gained all my weight by working in an office, and eating and drinking lots of good food and beer.
I also hate photos, used to love it, now I dread looking at fb after a night out where a camera was involved. I used to go out all the time, now I don't go out at all, it just makes me uncomfortable. I only buy clothes if I really have to, and I hate it, I get panic attacks in the dressing room and start to sweat when I see myself in the mirrors in there.
I think it's fantastic that you've already started exercising and made changes to your diet! This forum really is terrific for information and support.
Best of luck to you, you'll do great!