It's real trauma. Outside of harm to yourself or others, just let it out, live in the present, for the present, for you.
Ideally, I'm a 9-hour kinda sleep guy. With two kids, that's out the window, but I know it's what my body wants. My "I don't like this" cutoff is 7 hours, and anything less than 5 is where I feel miserable all day, and usually even worse the next (even if I manage to "catch up").
BUT, and this simply blew my mind, I was able to stay upright, drag my nearly-work-useless carcass to work every day, stay awake, and not even crave sleep for something like 2 straight weeks of perhaps an average of 3 hours per night. We could get in bed around 9, talk until midnight, then I'd wake at 3. Maybe we'd talk some more, maybe we wouldn't, but that actually worked. I was less tired than completely normal 5-hour nights.
Looking back, I just don't know how it worked. Now I do get tired, back then I was "just" mentally exhausted. I didn't eat well at all either. But my weird advice would be - just worry about fluids, and let your brain and your body do what it has to do outside of that. You're not going to starve to death, and while a lack of sleep is nothing but harmful, you're not going to "awake" to death. I wish I had drank more water though.
I've unfortunately had a similar reaction, and tons of others around here unfortunately have too. Simply having an account registered on here, as great as the community can be, is a genuine tragedy. I wish I didn't know this place exists, but now I'm sure glad that it does. You will be too.
But you just gotta get through what you gotta get through. If you think meds (anti-depression/anxiety, sleeping pills, etc.) make sense, talk to a professional about it, and let them help you decide if it does. Don't put yourself or others at any risk. But outside of that? Don't feel guilty, don't feel ashamed, just take care of your *needs* and let the chips fall where they may.
It absolutely feels like breaking at the time, but when you look back, you might find you only bent. We're all rooting for you.