Good point about the short stride and arm swing. As far as I'm aware I don't do that but next time I'm out I'll check myself and see.
I remember when I first started carrying I felt like I was walking around nekkid wearing only my gun.
I soon learned that nobody notices much about anybody else. I'm pretty careful not to print and I try to be ultra discrete but I long ago got over being selfconscious. I guess it comes with experience you eventually get used to it and seldom think of it through out the day.