Marfan syndrome?
My thumb is double jointed
So is mine.Ever put your leg behind your head?It's fun.
I can pop both of my thumbs by bending them a certain way.Also I have white of skin near the bottom of my back.
It's good for showing off and that's it. I could never do both, though.
I also have eczema, but it is secluded to the rear of my chin, so its slightly unnoticeable. But holy stuff, when it flares...*POOF*Edit: Double jointed in most of my upper body and lower body.
double jointed snake
ftfy