Blowing up my life

I was recently diagnosed, and since then I’ve been noticing just how intense my emotions have become. My husband and I had a baby a little over a year ago, and we also have two other children. Looking back, I realize my emotions have been all over the place for years, not just recently. I’ve started to question how much of this could be connected to MS, especially when it comes to emotional instability or even narcissistic traits. I’m also coming to terms with the fact that I’ve been emotionally abusive toward my partner for a long time, which is really hard to admit. On top of that, I recently ended an affair with someone I was seriously considering leaving my entire life for. There’s this sense of chaos in me—like I’m constantly needing attention and validation—and I don’t fully understand where it comes from. I’m trying to figure out whether this is related to my mental health, my MS diagnosis, or something separate entirely. I also wonder if I’m using MS as a way to explain or excuse behaviors that I need to take responsibility for. Has anyone else experienced something similar?