Ever since I was 14, I tighten my abdomen and suck in my stomach whenever I'm in a social setting where I care what people think. I wasn't even a fat kid, just a tiny bit of a belly. I thought everyone did this.

Nowadays, I'm a lot more in shape than I ever was but I have a stutter since I was born and I think this is making it worse. Do you guys tense your stomach when you're talking to new people or attractive women? Hell, when my sweatshirts have a crease in them when I sit down makes me nervous that people will misread me as lazy/overweight.