Rumor has it

I was in the ladies' room in the office when I bumped into a colleague stationed on the other floor. She told me that I gotten back to my previous body weight. I smiled back and told her that I just went on a diet and hit the gym.
I was really surprised about how she surprisingly reacted.
She said: Are you allowed to go to the gym and to go on a diet?. I told her: Yes!
I think the rumor has really gone a bit far.