Do I have klinefelters syndrome?

I am 16, 5 foot 9 and 145 lbs. We were talking about klinefelter syndrome in bio today and it worries me..I have what I always thought were wider hips, except I thought maybe it was because of fat there. Same goes for my chest. I do have a full amount of pubic hair and a decent amount of armpit hair with not much facial hair except above my lip. I don't have any learning disabilities as I'm first in my class, I do have a deeper voice, i lift weights and play sports with what I think is good coordination. Please any input will help

[Elaine Brown, MD]

Hi!
You are most likely quite normal.  However, if you are concerned, you could certainly consult your family doctor for a thorough physical exam.  Most Klinefelter's patients have at least some degree of breast development, and also small testes and penis.  
The definitive test is a karyotype.  Unfortunately, these tests are quite expensive, which is why I suggest undergoing an exam first.
Good luck!
Dr B