Lets see I'll start with physical.
I was born with a birth defect commonly known as funnel chest but medically known as pectus excavatum which sadly looks like it runs hereditary in my family. My cousin (girl), her baby, my dad, my uncle and I all have this. I had surgery for it about 8 years ago. The hole is gone but the self-conscious awareness is still there but now its better thanks to chest hair which has covered up the surgery scares.
Here's a little info on pectus excavatum:
Estimates vary, but pectus excavatum, or funnel chest, is thought to occur in one of every 600 to 2,000 newborns. It is caused by an overgrowth of cartilage between the sternum and the ribs, which causes the bone to turn inward. Only 15% undergo surgery to repair the sunken grooves and concave appearance that mark their bodies, usually for life. Many children will start to experience symptoms around school age, and often they complain of shortness of breath and reduced endurance. Many are extremely self-conscious about their appearance, don't participate in sports, and will not wear bathing suits; boys often refuse to go shirtless. The disorder is twice as common in men than women and can run in families
Now the mental. Already shy that (above) doesn't help. But I'll move on. Next is my ADD/HD and history of depression. I'm the smartest kid in the room (or so they say) but I do not apply myself and I tend to give up and hide. I struggle for will power. Something which my sister doesn't struggle with, its what runs her.
My sister didn't talk until about 2 or hear anything until about 3. Doctors said she could be deaf. She also has severly learning disabilities something which I never had. She struggles and struggles to get through school and works until its done and when its done she ends up getting only a C on a paper (although she's got a 3.2 something while I always was around 2.5). She has come along way. Parents really proud of her and so am I (even if she won't talk to me). But she has the one thing I'm missing. And I hate that while I have the one thing she's missing and she hates that (so I've been told). Could learn a lot from each other but she refuses to talk to me (publicly anyway).
Bottom line: I had the brains but not the will power while she learning processing problems, learning disabilities and so on but runs on only one thing will power.