Will I have to retake MEPS Urinalysis if my urine is diluted through a diuretic?

Hey, so I’ve been having problems with being Pee Shy at MEPS even after drinking enough water that I felt like I was about to burst. And I’ve heard that taking a diuretic makes it easier to pee. Not taking it to dilute drug use because I don’t do drugs and have taken urinalysis drug tests at the recruiters office on my own in their bathroom, just using the diuretic to hopefully make it easier to pee in front of the guy who’s gonna be watching. Will i have to retake it if I use a diuretic?