Taylor, I think you've gotten good advice so far here on YT but a quick call to her vets office won't hurt if she truly isn't eating at all. Maybe she's just getting smart in her teenage years & has figured out if she holds out long enough, mommy will give her some of the "yummy" stuff. My Bella does this about once a month but truthfully she's never gone more than 24 hours without eating. It's really hard for me, she has a queasy tummy & has been known to refuse food then throw up bile
Good luck!