my coworker asked me why i’m fat

i’m vegan and just got a new job. i’m pretty short and have been obese my whole life due to thyroid issues. i eat pretty healthy though. so for my lunches at work i always have a salad, fruit, usually carrots, pretzels and hummus. sometimes a sandwich or bread for my salad. i’m always drinking my morning smoothie at work too. but a few moments ago my co worker came in the lunch room and asked me why am i “like that” if i eat so healthy. she referred to me as “swollen fat” then she asked me if it was because of my thyroid and i told her i was diagnosed at 10 and never really had my medicine regulated. she said that i should have took it when they prescribed it to me because maybe i wouldn’t be like this now. i told her i am who i am whether i am fat or skinny and she said “true”. i don’t really care about it too my i but i think i feel a little uncomfortable? she’s foreign, which isn’t an excuse but it shows that we are all just brought up differently and maybe she just doesn’t know that that can hurt someone’s feelings? she is very direct. idk how would you feel?