Hmmm already dehydrated and feeling like shit. Yeah, Lasix seems like a great idea. Especially for a local show inside a high school gymnasium where nobody’s watching.
All kidding aside, I wish you the best of luck. I’d focus on feeling good and enjoying the experience instead of feeling like shit the entire time. In the end, if you feel like you aren’t in shape, a last minute trick won’t likely make a positive difference. Oh, and it could kill you, and the last thing any vain bodybuilder would want is to die at the Mr. Smalltown USA pageant