Do I have hyperhidrosis (excessive sweating)?

I saw a show about a girl who has hyperhidrosis a few days ago. For the past year or so I have noticed my underarms, hands, back, and face getting sweaty after little physical activity. If I yell or I run for a couple seconds sweat stains begin to appear on my clothing. My friends have pointed out sweat they see on my clothes or body and I am embarrassed to wear short sleeve shirts. Do I sweat more than normal people? And if so, is there a way I can treat it?