Everything is a horrible thought.....I'm hanging by a thread. My poor little girl, why her!?

I used to never have these thoughts it feels like im a different person and im so sad . I watched a TikTok of a girl with her kid and my Brain says how has she not killed her kid yet like wtf cus I get so many thoughts I’m shocked other ppl don’t and now my Brian says how I have I not hurt my dad . I keep posting and I shouldn’t but I feel not normal

My mind is telling me I'm the only one who is dealing with something like this. Idk why I did my biggest BIGGEST fear. I was put on a new medication when this happened which caused me to spiral, my thoughts to be more often, and have insomnia. I have been diagnosed with POCD as well. I woke up in the middle of the night when my child was laying completely cross my chest. I was breathing and having groinal sensations. My mind told me that I assaulted her by this, and I was going to prison for it. My thoughts started going like this, "you're already bad might as well do something else", "no sense in stopping now" "you can finally do what you've always wanted", "what would you do if you could do anything to cause harm" So I had to think of what to do in the moment. The only thing I could think to do was move my elbow towards my child's groin. In the moment it felt like I really wanted to do this. I proceeded to do so, and my elbow touched her groin. I immediately told my child to move off me. I then went back to sleep. When I woke up, I began panicking, confessing to a family member what happened, and crying immensely. I feel like I failed as a mother. I'm in such distress since I started sleeping on the floor to avoid it from happening again, and I got off the medication. I'm so much better OCD wise since I got off the meds. I was the BEST mom months ago before this happened. The thoughts have always bothered me, and I was always scared I would give in and act on them. I'm living my worst nightmare. I feel alone. Felt so so wanted in the moment and SO real. Which I don't understand. Ugh. Could someone just give me some support?

Im sorry I have to come on here and ask for advice once again, but as some people on here know I have been suffering with ocd since I was around the age of ten, which only got worse as my beautiful children came along. or nearly 60 years Ive had every type of ocd there is, they always come down to the same thing , not wanting to ever harm the people I love more than anything. I had got on top of this and was managing well, I know I would never harm anyone I love ever and would never ever want to, no more of the hypothetical scenarios for reassurance either , but its like every time I try to stop the mental compulsions intrusive thoughts come back after a few days, As I was in between going to sleep and was half awake the horrible words ' hope ***** dies I cannot even write the name down who it was about. I do not know where it came from but I am constantly getting upset about this as it was about someone I would give up my life for. I think you can probably guess what I mean without me having to say it. I do read a lot of posts and ocd podcasts and once read someones story wher they used to wish bad things and I have never been able to stop worrying in case something like that happened to me . Could this be what it was that has caused it ? I think Ive also still held onto something from when I was a child when I used to worry that thinking something too much could make it happen,, Please, please give me some addvice and thank you,,, sorry for the long post.