Yeah, I didn't want to be nasty about it, but the article saying that 37" is the median adult American woman's waist measurement is... pretty shocking. Like, I'm a 6' slightly out of shape dude and my waist fluctuates from 33-35". You'd have to be pretty large to have a feminine figure and have the narrow part be 2" wider than my widest section.
No you're not. That's the size your brands of choice advertise to you so you think that you're slimmer than you are.
Have you measured your waist? Vanity sizing is a thing in men’s clothes too.