Girls....Period cramps?!

Girls....Period cramps?

Mine are never continuous. Sometimes I have none at all, and other times they're so bad I can't walk. Yesterday I got my period, and walking through my house I suddenly got so dizzy that I could hardly get to my room without passing out, and my cramps were so painful I had to lie in bed for the longest time.

I'm only 15, but I've had my period since I was twelve. Is this normal, and if not what can I do about it?

2 weeks ago
I was actually swimming that morning, before I realized I had my period....and then when I got home I basically died.

Usually exercise can relief the cramps, if not try Motrin, if the cramps are still so severe I would contact a doctor, they can suggest or maybe even prescribe something that will help.