We currently have 2 16 year olds with AS in my family. My daughter and my nephew. They have exactly the same problems. The biggest difference is that to most people my daughter appears normal, whereas they are very much aware that my nephew has difficulties, even if they don't know why.
This highlights a big difference between girls and boys with AS. Girls are much more likely to copy what they see around them in order to fit in. In my daughter's case, she was so good at it that she fooled most professionals. Only those who really knew her could spot that something wasn't quite right.
She summed it up herself recently following the sudden death of her friends mother. The girl came back to school and everyone was fussing over her, all concerned for her welbeing and getting quite upset themselves. My daughter was exactly the same. Nobody would have noticed she was different. But she said to me afterwards that she just did what everyone else was doing as she figured that was what was expected. She said she actually didn't feel anything and wasn't that interested, after all it wasn't like it was me, so why should she be bothered by it.