Male/20. Sorry, 'cause english isn't my first language. Today I had the 2nd worst day of my life and wonder if this is still BPD. I was in school and there only 10 minutes left. I sat there and my derealization started kicking again (it used to be chronic, but now I just experience it several times throughout the day). Well while my derealization started, I thought that all my class mates look like robots and that nothing seemed real. Then out of nowhere I got this massive feeling of panic in my chest. I didn't know any human being could feel this type of intense panic and fear. I used to have hypochondria when I was 13, but my panic attacks back then were never THIS BAD and they stopped after therapy when I was 14. I immediately ran out of class to the school toilets and used a breathing technique, 'cause I fell less and less connected to my surroundings and myself and I thought that I officially lost my mind now. That's when the intense paranoia started and I thought somebody is going to get me. I hold my arm under cold water, pinched my skin and it slowly got better. Now to the worrying part- I decided to go back to my class, but there were 2 girls in the halls talking about her class mate. One girl said to the other "She's not in reality anymore, she can't tell what's real and what's fake" and my mind immediately believed that they knew about what I'm going through right now or that the girls stood there intentionally, to tell me that I'm losing my mind and that they know that nothing is real and nothing exists. I immediately panicked again, rain to another empty room and thought that I officially drifted into psychosis. My vision also got blurry and I lost touch to reality and my body so much, that I got scared that I would just pass out and wake up out of this simulation and still got thoughts, that the people around me want to harm me. I wated in the room til the lesson was over. 
Now my question- is the intense paranoia within this type of panic attacks normal for someone with BPD? Or am I really drifting into psychosis? I'm still so anxious and can't leave my house. Thank u for your answers :)