are you really screaming and drawing zombies to you?
Check your mutations. If you have screamer or something like that then the answer is yes.
Every so often you scream and that being a loud sound will draw attention to you.
If you have a mutation you wish to get rid off I recommend finding purifier. Look for dead scientist and they should have some… or key cards to let you into a lab where you can likely find some.
mm, tasty baby fetuses.