Ill try keep it short. I've always treated depression and anxiety with a certain level of 'just change the way youre thinking and you'll get better. It's your mind, control it.' But Im slipping so far away from being able to take my own advice.
I started a new job about a year ago, and for the first 9 months worked nights. It ruined my sleep pattern, a routine of having solid meals, and sapped my energy levels. It ruined my relationship because my partner (diagnosed with depression and anxiety, with suicidal ideation) began to feel neglected and that i didnt care. Her depression has got worse, and worse, and worse, but she felt and feels she cant really talk to me any more about it. She confided in an ex colleague of mine, and they met up several times. I felt fine with that because my partner needed someone to talk to. Turns out he "fell in love with her" and they kissed. She developed feelings for him and began to question whether she was still in love with me. She left and went to stay at her mums for two weeks. We talked everyday, and i saw her most days. She wasnt stand offish with me. Still showed me affection. Still said I Love You. We talked about all the issues and she came home. Shes been home about 3 months. Things feel (more specifically in the last 3 weeks) like they are returning to the way things were. We are going from strength to strength. But...
I cant stop getting angry and feeling complete and utter rage towards this other guy. To the point ive played through hurting him in my head so many times. To an unhealthy degree. I imagine (at least) hospitalising him. I constantly worry that im not good enough for my partner, that shes pretending things are on the mend. Even after an extended spell of real promise, the minute she doesnt want to hold my hand, or cuddle - i begin to feel inconsolable. Ive felt such despair in the last few months. I keep checking her social media and her phone. I know she hasnt (unless shes deleted it) spoken to him since september. But he has blocked and deleted me so that I cant see his activity. Since, he has started to tag her in things, and comment on her posts - which he wasnt doing before. She had said she wanted him to leave her alone but never deleted him from social media.
I feel more or less constant anger, rage, worry, inadequacy, self doubt, fear. Im struggling to get full nights sleep, my appetite comes and goes. The last few days ive such an intense feeling on my chest, of someone sitting on me. And not being able to take a full breath.
I read something about borderline personality disorder, which sounds like me regardless - but this whole situation is ruining me, I feel. What should I do?