Hello, i'm having a sort of crackling sound in my brain whenever i move my head. feels like popcorn popping or chips cracking. no headache or anything?

Neck?: We generally do not hear things in our brain, but it is possible that you are hearing some crunching in the neck bones when you move your head, or possibly some issues inside your ear canal could be triggering this. Please see a doctor. In either event, it is likely this is not a worrisome thing, just annoying, but perhaps can be treated.