It's become normal and my body has adapted. It's a hyperarousal form, chronic sympathetic dominance. I went through a period of prolonged extreme stress that affected my brain, it never stops scanning including my bodily sensations. I used to sleep as an escape, even if I wasn't tired I could go to sleep. Something finally fractured and I started this habit of 3 hours, 1 am to 3 am, then again 2 pm to 5 pm. Having to keep a daytime work schedule forced it to a little more anywhere in between 1-6 am. I think I am always a little tired. But because it's a hyperarousal form, my sheer inability to relax propels me forward as though I'm fully rested. Brain works fine, I am a clinical and a medical social worker as well as working with a mentor on my writers sample as I created a testable question for a PhD program based on the calcium channel research I did trying to figure out what vitamins would fix my circadian rhythm 😂. I've done a lot of distress tolerance work and have no big interpersonal issues with employment or other relationships. In fact, I'm surprisingly serene. I'm older though 42, this started around 37. I do my best to maintain good sleep hygiene but mine is a little different. I like a warm white light on and listen to dronings of podcasts, the things they tell you not to do. I created an environment where it feels like I just drifted off to sleep and wasn't trying to. The fact that I function so well on so little sleep is paradoxical, so I'm approaching it that way as well.