Do people think I forget my name?

Do people think I forget my name? So there’s some words I struggle with/letters. I realized I stutter with the words “this is” and anything with that starts with Z’s. It just so happens my name starts with a Z so when I’m working on the radio saying “This is Z***” can be difficult. The past couple of days I’ve worked of said “this is uhhhhh Z***” over the radio and I’m wondering if people are thinking I’m forgetting my name? Or are people by now aware that it’s probably just my stutter? I feel like everyone should know at my job I have one by now