You know, you really dont need to worry so much, I have a few curled leaves on my plant to. When growing pot its always good to remember, its always a plant, Rip that sucker right off or some shit. It'll be fine. If there is a real bad problem. Your plant would just curl a little bit. But, it is probably because u didnt water for 5 days though. Dont be such a Paranoid Stoner. Eaiser said then done though. I know. but i do promise you IT WILL BE OK!