I too can relate. I've had mental problems for my whole adult life that in hindsight should have been addressed decades ago...but on the whole I was happy, loved life, nature and music until I broke down in the spring of 2021 during what I did not realize at the time was a battery of inexplicable mental and physical symptoms from neurological Lyme disease that infected my brain and central nervous system. In my brain's state of utter confusion, mania and paranoia, I threw away my partner, my two stepchildren and a beautiful farmhouse and property in a gorgeous rural area. It was ugly and traumatic, and I had no way to recognize or express to her that my behavior was largely the result of my brain being infected and overtaken. Now our future is dead, it's too late, she has moved on and she will never speak to me again.
The past 14 months have been a hellscape of neurological symptoms and the complete collapse of my mind as my personality has been systematically dismantled and I have become a shell of a human being. I live on the bleeding edge of panic, which lurks at all times around the corner. I am afraid of everything, even my own basic needs. Afraid of food, afraid of sleep/dreams, afraid of other humans, afraid of my family. This strange disease causes neurological symptoms that have resulted in a punishing state of extreme hypervigilance in my nervous system and my mind. It plays me like a puppet: my body twitches constantly, my ears ring loudly 24/7/365, I get headaches, episodes of vertigo, air hunger, tachycardia, buzzing/vibrating in my chest, shooting electrical impulses that travel violently from my brain down through my chest and belly. I am haunted nearly every moment with images and invasive thoughts of my ex and the losses are woven tightly into complex PTSD and a mountain of other issues that probably go back to my childhood. I don't want her in my head anymore, but she has taken up permanent residence. When I attempt to leave the house, the world around me is a landscape of triggers leading right back to her. I am tossed relentlessly back and forth between being devastated with the loss of her, and feeling terrified of her.
I have spent nearly every waking hour of my life desperately hanging on in the fetal position in a bed over the past 7 months staring into the void of the internet and pushing the reality of my mental and bodily imprisonment away with YouTube, movies, or podcasts. I literally cannot exist without an audio or video distraction of some kind; if I do not have something to forcefully disassociate me from the terrifying landscape of reality and my battered mind, I began to convulse into panic attacks that can last for hours. Spending ungodly amounts of time on the internet like that with no other social interaction has rewired my brain catastrophically. I can barely navigate a simple trip to the grocery store; any attempt to venture into the world outside of my parents house where I am trapped results in an emotional rollercoaster and incessant mind chatter, a whirlpool of unending grief for the life I had before it all came apart.
I have given up seeking help, there is no one who can understand what I've been through, and frankly I have no way to fully represent it using language, and too much damage has been done for talking about it to help. Talking about it does nothing, and the talk therapy that's available to me locally is elementary and useless. I am way too far gone, and I want to end my suffering and die peacefully. Neurotypical people have no way to empathize with the fact that sometimes, a human really can experience so much trauma that they are truly too far gone for recovery. I am stuck because I know that I will cause my family pain if I CTB, but I also know that I will not be able to hang on for much longer.