Has anyone experienced anxiety, insomnia, trouble concentrating at work, intense urges to research BPD to make sense of your world, etc. as a result of having a relationship with someone with BPD
Yes. And I still get worked up into research & venting mode (with safe, trustworthy people) after every attempt he's made to contact me after our break-up. It's been 5 weeks since I broke up with him, but he e-mailed me last night about how he tested positive for Covid and wanted me to know in case of rumors at work--we work in separate areas of the same building. That was very hard not to reply to, but I think I've been pretty clear that I don't want to talk to him, let alone try to be friends.
I just keep reminding myself that nothing would change, and that NC is to keep the cycle from repeating. I've had one bad relationship before, but it never got as dangerous as this one. (Drinking, guns in the house, pressure into doing & saying things I didn't want to, verbal and emotional abuse). It was the most confusing experience b/c of the random intense idealization. "I'll do whatever it takes. I don't want to lose you."
I don't even know if he has BPD as I don't always relate to other stories on these forums. But I can relate to enough, and I know him enough. I had a hole in my heart that I was trying to fill with him, but now I'm looking to God for that.
I don't know if any of this helped, but I hope you don't forget that your feelings matter... At one point I had to have 2 therapists tell me that I was definitely putting his feelings before my own.
Big hugs, and I hope you find the solution that makes you happy.