So, background: I'm 19, nearly 20, and I've had steadily worsening depression for about as long as I can remember. I've made two suicide attempts and recently had to leave college because I could not get myself up to go to class and was starting to fail and sink toward another suicide attempt. I've done DBT before, but never been diagnosed with borderline.
Lately, however, I've begun to think that I'm developing it. I don't feel like I used to alternatively lionize and demonize people, but now I do. Lately I've often felt very disconnected from my body, both in the sense that I feel like my body is some kind of extraneous fleshy limb hanging off of my eyes and that I look in the mirror and feel no connection between myself and the person I see. A couple of months ago I had a period where I regularly had impulsive sex with strangers, despite not enjoying it and not even actually desiring it at any point. I felt like I was acting in a dream. I've always been pretty reactive, but last night I had a calm conversation in which I had to defend my beliefs against people who disagreed with me but were quite polite about it, and afterward I felt furious at them and became very depressed for a couple of hours. I didn't feel like I was in control of my emotions, beyond just the fact that I have a chemical imbalance. I felt like my mind and my feelings were being controlled externally. And now I feel like my rationality and ability to have balanced, dialectic opinions has been stolen from me. I feel like I'm a different person, and I don't know who that person is.
I hate it because I don't think I used to be like this. It feels new, like I'm losing my mind and it's degrading and I'm losing the ability to know what's real and what's right and what I should believe. And even that sounds crazy to me. I feel like I've suddenly become a crazy person and I've lost my mind and it's terrifying. I don't know that this is BPD, and obviously you can't diagnose me, but if anyone has anything to say on developing symptoms like this that weren't there before it would be a great help I feel.