Many Klinefelter patients remain undiagnosed for life.

And they all present differently too. There is a great variance
among them. You certainly do seem to have a cluster of symptoms suggesting it. Klinefelter men may be teased or bullied in school as well, especially the ones with more obvious external signs. (there are photo images on Google of the common body types...but not all Klinefelter patients exhibit those characteristics.)

Treatment is with a testosterone gel or injection. The major issues I think are infertility (the testosterone gel makes this worse) and the increased risk of breast cancer and autoimmune disease.(which they have to be aware of should they occur later in life).

There are also toxins in fire retardant furniture that we are exposed to that are hormone disruptors.
http://en.wikipedia.org/wiki/Endocrine_disruptor
There have been media reports this week in fact about removing fire retardants from bedding and furniture now.