Okay. I have tried to ask this in RL to people before, for years, but as yet, no one has any idea what I am talking about.
I can make a noise in my head. It is like I am squeezing brain muscles and it makes a sort of noise like thunder. I can do it anytime, and for as long as I want but not more than a few seconds or I start to feel a bit strange.
I have been able to do this since I can remember, and I know I used to do it when I was frustrated or getting a row when I was little. Looking at me, you would not know I was doing anything, IYKWIM.
Does anyone have any idea what I am talking about? Is it normal, can everyone do this? If not, what is it? Is it harming my brain?
I hope I am not crazy...