My freshman year of college I went from 129 to 108 in a month. All bad. And I can say with certainty that I was way too skinny. I gained the weight back in about two to three months, so I wasn't that thin for too long and don't remember feeling ill effects from it. However, I looked sick. Plain and simple. My cheeks were very hollow, my elbows looked ridiculous because they stuck out so much from the rest of my arms, and I looked like a bobblehead or a lollipop. It was also painful to sit on hard surfaces or lay down because my hips were so bony, and I have no butt to begin with. That was definitely too skinny.
Too skinny? Is either an obsessive mentality, a health condition (Which I'm in no place to speculate about for other people) or aesthetics. Aesthetically speaking- if your limbs appear to have no muscle, your joints and head look oversized for your body, or you can count the ribs above your breasts/below your neck on your chest, then in my opinion, you are too skinny.
As for numbers and sizes- I try not to judge people's "skinniness" by their weight as long as it's above the underweight category in the BMI range. Most people would say that 130 is too skinny for someone my height- but at that weight I was a competitive soccer player who ate like a horse and was at the peak of physical fitness. I was also a size 8 in womens (11 or 13 in juniors) and the only people who really knew my "number" was so low were my doctor and nutritionist, most people still would have guessed I weighed 150 or more.
As for the tiny people. I hate you. Really. Well, no, that's just the jealousy speaking. But I've always wanted to be tiny. Petite. Delicate. I'm an almost 5'9" woman (who would be 5'11" if it weren't for scoliosis) in a family full of 4'11" and 5'2" women who never weighed over 100 pounds until they had kids. If they ever did. Skinny, waify, tiny, etc. Are never in my cards. But, I'm coming to grips with that. I'll settle for looking like I'm in shape again.


