So it's 2:30 in the morning I'm texting and about to go to sleep. But I have this sensation that is awkward?

I am sitting here and it is quite, only a fan on in my room. But it feels as if I am in a war sort of. I am noticing what sounds like screaming and activity, but it is dead silent. It is all in my head. Idk how to describe besides saying I feel like I am in battle and screaming of orders is all around me.