What can I do so my stomach doesn't growl?

I'm anorexic (please don't hate, I'm asking a question. Answer it or screw off), and I can't make my stomach stop growling! Like I'll eat for a day, then the next day it growls forever. How am I supposed to make people believe that I ate when my stomach says otherwise? I can't do the anti-acid thing. I can't really afford that right now. My job sucks...