Losing Myself

Things have been pretty hectic for me lately. I've had a decent amount of trauma in my life, and I was diagnosed with C-PTSD at a fairly young age. The most recent incident was on the 6th of October, last month. I got into a huge fight with the man I have been exclusively seeing for the past few years. He's told me time and again that I'm the only girls he's been talking to, but I had a bad feeling about it. I ended up going through his phone at 3 am and found multiple conversations with different girls, some of which were only a few days old. (Not just flirting, but sending nude pictures back and forth and stuff like that.) I freaked out and left his house, but it was raining. I lost control of my car and ended up totaling it. I'm thankfully not too physically injured, just some broken ribs, stitches, and a messed up shoulder. But since the accident I haven't felt much of anything, good or bad. I've been unintentionally isolating myself, I have little interest in anything, I don't really want to be around people, ect. My family and coworkers have been constantly asking me if I'm okay, but I don't know. I honestly don't feel much of anything, and I honestly don't really care about anything anymore. I've never felt this emotionally numb or hollow before. I'm not sure if it's a trauma response, or something else. I guess I just wanted to vent a bit since I don't really have friends. I also wanted to see if anyone else has gone through feeling like this, and how they started feeling more like themselves again.