I have gyneacomastia small penis and small hands i am a 62yo male is it a chromosomal problem?

Maybe: I would need a lot more information to make a diagnosis. Small hands and small penis are relative judgments and yours may be absolutely normal. Gynecomastia may be a hormone imbalance or a sign of excess estrogen from being too fat. Get checked out to be sure.

Chromosomal concerns: You should see your local doctor first and confirm all of your concerns. You could have your hormones evaluated and chromosomal studies if indicated. Speculating on some concerns you have about your characteristics will not help here.