I am so sorry that happened to you.It would make me crazy to think that people thought I had gastric bypass when I didn't. I personally would be compelled to go back to that person and tell them what I did do and ask her to stop any gossip and to respect my privacy. I was initially worried that people would think i took the easy way out when I got my my band. But i don't consider being at my last rope and having surgery and spending a huge amount of money easy. I hope you are feeling better soon about your co-workers extremely inappropriate behaviour! Keep moving forward and do what you need to do.