So anyone on here know the pain of having a resting bitch face?

Ever since I was young, one of the lines I heard the most in my life was "Why are u angry/mad?" or "You look angry/mad what happened?". I've heard this from a lot of people.

I would be just relaxing, thinking about random stuff or about absolutely nothing and the I hear- "What made u so angry??". Then I look at them and they give me a confused look as if they don't get y I'm suddenly mad- I'M THE ONE WHO'S CONFUSED, wdym I look mad bro, I was just thinking about what to eat when I get home or some shit.