I am in the exact same boat as you. To make matters worse a lot of the business in our office is handled over the phone so a lot of these customers I haven't seen in a year or longer. I also wear loose fitting clothing a lot so when I started losing the weight it really wasn't just glaringly obvious until I had already dropped quite a large amount (down to normal BMI). Now I am never hearing the end of it. Every single one of them wants to know how you did it. I just say, "move more, eat less" and what I get back in response is "yeah, but what's your secret". There is no frigging secret idiots just count your damn calories and work out a little.  Even went so far as to having a fat bitch who came in yesterday trying to bait me into a damn fight over MY weight loss and how it made HER feel. Seriously!?! I was so ticked I went home, got on my elliptical and fumed over it while wishing that I could have said what I was really thinking but couldn't because I was at work and had to be nice.