Not again

Hi, I have suffered with pure o for most of my life and had many of the most common obsession, sexual, harming etc.
I had been doing great for about 5+ years and I put it down to finding the medication that worked best for me , I can honestly say I felt about 90% free from cod hell and life was good again.
To get to the point of my post, 5 days ago I was watching tv watching a program where the police went to family home to inform the family that daughter had been murdered, everyone was upset and crying, it was quite emotional and out of nowhere I had a though that I didn't care or would take some joy of being in that situation, I don't know if this will make sense but I had the thought of having a good cry was a good feeling and now I have the thought going round in my head almost every waken moment and I can't stop thinking I am evil and have no compassion and I am imagining other scenarios that seem to only confirm that I am evil and maybe I am some kind of sociopath.
Please someone tell me this is my ocd and that is what it does.