I have a really embarrasing problem?

Today was my first day at my new GED cles with teens my age and when i got to the clroom i was drenched in sweat, see I have a severe sweating problem and i can't control it, in manhattan it's very humid and it's like the moment i walk out side i begin to sweat, but it's like once i got to the cl room, sat down and stopped moving, the sweat just continued to pour out even worse. One of the girls actually moved her seat because of me. I just want to know how can get this sweating problem under control? It's been a problem throughout my life and I don't know why. And it's not like i was runnining at extreme speed, i could just be simple walking and begn to sweat severly then once i stop it gets worse. how can i stop the mive sweating? It looks like i just came out of a swimming pool!