A long while back I was hanging out with one of my sisters and she said that she hears thunder in her head when she gets startled.
Me: “Scuse me. What?”
Her: “You know. That thunder you hear when someone startles you.”
Me: “Again. What?”
Her: “You don’t hear thunder when someone startles you?”
Me: “Uh, no.”
Her: “Oh. I thought that happened to everybody.”
Is this a thing? Does this happen to anybody else out there? She did struggle with depression for much of her life. Could that have had something to do with it?
Ears are a pretty vague and complex system with weird acoustics that the brain usually filters out. Tinnitus can happen if the brain fails to filter out some change in the acoustics caused by damage or fatigue or who knows what.
But both a rumble and white flashes sound a lot like pain reactions. Maybe caused by sudden tensing. Brain just makes these weird sensations when it encounters odd inputs and they might be hard to describe.
Cold chills and hot burning blush and shudders and all kinds of funny little things often happen because of weirdest reasons.