I hide the fact that i eat junk food

Maybe it's just because i live in house with lots of health conscious people.
I like healthy food quite a lot actually and eat a far bit of it. but i sometime have little binges of eating junk food and sweats and I always hide them away right when i get home and make sure no one sees that bought bad foods. Im not fat at all, but i do get me a tooth for some junk food from time to time and honestly id feel really embarrassed if any of my housemates saw my secret food stash of shitty unhealthy foods.