I am experiencing it, and its making me think I'm going to irrationally murder everyone, its obsessive thoughts dont scare me anymore, but thats the reason I'm scared of, I read articles about serial killers and stuff, which got me kinda scared of becoming one. I dont want to be one, this backdoor spike s so invisible, but its still there, I feel normal but with a bit more thoughts on my head as I go. How do I cope with backdoor spike?

I just had to read about the concept of the "backdoor spike" & I understand this perfectly... My OCD doesn't affect me as much as it used to, but I spike quite a lot & often cause myself anxiety by being somehow triggered into thinking about my old behaviour/thoughts.

For one, I suggest you stop reading about serial killers... Even if they interest you. I'm personally a huge fan of forensic fiction & true crime articles. But that's not going to help you feel better & it's going to keep making you think about this.
Two, recognize that it is normal to worry about this. You had OCD & you alone know how devastating it was for you to experience... But these thoughts don't mean it's coming back. And thoughts alone can't make you into a serial killer/mass murderer. You would have to WANT to do it & just because you have no anxiety, it doesn't mean you have the desire to do it. You are psyching yourself out & I totally understand how difficult it is not to succumb to that.
Three, find something to keep you distracted. Find something new to invest your time into. Even if it's writing your thoughts to get them out of your head, find a way of liberating yourself from thinking too much without going numb & dumb.

I hope that helped... *sigh* Wow, it's amazing how easy it is to give advice when you're not the one dealing with something at the moment! Lol. But truly, this will pass. Even if it doesn't feel like it. One of my common intrusive thoughts is about having all of the signs of being a serial killer...
Even though that's true, it's my own decisions that will dictate my fate. Not a train of thought. : )

Goodness Shayatanica, that helped me a lot, I seriously should keep myself away from serial murder articles. and I'm with you on that one, where its hard to give advice when you aren't experiencing it. Thank you for your time and response.

Glad to be of assistance!!

But heres a question, whenever i do my old activities, I think of them as bad, I used to be very violent minded as of like fighting shooting killing etc. I also have a tendency of thinking i am not in control and I control myself. I usually have these ups and downs, first i am usually like "I dont have the hope of overcoming OCD" then soon later on I have the will power of it. I feel so confused of who the heck I am now, I mean, I can't go back to my old self because my old thoughts were so violent and stuff, I used to read scary stories(which is what got me OCD) I dont actually like the old self now, becuase I was afraid that if I were to go back to my old self, I wouldve done bad things. Well my old self wasn't like SUPER bad, I was in control, I knew how to cope like a normal person, I was happy and a outgoing good person. I want those traits, OCD changed me and now I'm more of just a good sided person of me. Its reall hard to explain. I guess I was an average person until now. :/ Any help?

If I'm understanding correctly, you're becoming hyper-vigilant & are worried that traits of you which the OCD took out of hand make you inherently bad. And that's simply not true. This is just another issue of the backdoor spike, I think. Liking scary stories & violence don't automatically determine whether someone is good or bad. I can understand wanting to stay away from them until you get control of yourself & would actually highly recommend it. But there's no need to demonize yourself, whether it's your old self or new self, just because you have changed. You were in the grips of something you couldn't control for a while. It wasn't an active choice. It takes a while to find yourself again & figure yourself out, but you can't live in fear that you are or were a "bad person".