Last night I did one of the riskiest things I've ever done. I felt good while I was doing it, like I was unstoppable and I could do anything. I felt so powerful I would've done anything because fuck consequences. I didn't care about any of that. Then my S/O said something and I realized that I've hurt him.   
I felt so bad, like I was the lowest of the low and I didn't deserve anything good. Has anyone ever experienced anything like this feeling? I'm not diagnosed with any mental illness, but I've suspected BPD for years. Any advice? I don't know what to think,, I'm so humiliated about the whole experience I don't want to talk about it to anyone I know. I don't want to do anything. I feel helpless...