is this normal ?

does anyone else get really vivid intrusive thoughts of the person who you are talking to (or close to physically) just randomly striking you violently? i keep getting them when i’m just talking to my dad one on one in the car & i get a flash of intrusive thoughts of him grabbing my hair & shoving my face in the dashboard. it gets me so anxious :’)

I am really suffering with health anxiety at the minute I am absolutely PETRIFIED of cancer and Im only 17 its draining the life out of me Ive had a cough / cold for two weeks now and ive felt itchy - Has anyone else ever just felt really itchy Im terrified in case I have cancer Im really really petrified I get so scared of death im really frightened SO frightened Im so so scared of the C. Uts scary

So I had a panic attack a while ago to “kill mom” and I forgot about the thought until a few days later. When it came back I was mentally drained and it lasted for 2 months or more. It eventually went away but it is back. I get other intrusive thoughts but they go away after a hour or so. Why am I stressing over “kill mom” so much. I just get irritated that it won’t go away. I’m beginning to think it’s a different mental illness maybe just anxiety? I’m not sure to be honest. It just appears and sits there and I feel like I’m doomed and a pyscho and worry that I’ll never forget the thought.