US men are 5'9 1/2" to 5'10 1/2" I am 5'9 1/2" so I'm nearly dead average. I find that to be true in my life that I'm about average, except for the fact that i have really tall family. I wish I was really tall but I don't dislike my height.
I don't really feel bad until I'm around my tall family members or people are actually talking about it. I feel the same about my shoe size, 9-10 depending.
The person that makes me most self conscious is my father because he makes fun of me for little stuff and he doesn't think it matters. He attacks me for very personal stuff. Some of it is emotionally abusive. I have small feet, I'm short, I'm scrawny, I have no muscle, I'm fat, I'm selfish, I'm a failure.