whenever I hit my head I always obsess about if I got a concussion

I was driving when I passed by 2 kids playing with a ball in their front yard, their ball made it to the street, I slowed down and continued my route and looked back to to make sure they’re ok and when I got home I started getting intrusive thoughts that I ran over the kid 😢

but is it OCD if when i get a thought that makes me anxious i have to hit my head a certain number of times to get it out of my head to relive my brain that everything is fine now (doesn’t always help though). or am i just being dramatic?

I had a migraine a little over a week ago after a few months of tremendous stress and anxiety. For a few days I was okay apart from a mild headache but then i got it into my head that I have a brain tumour. Yesterday I had the worst panic attack ever caused by all this overthinking. I started getting really dizzy, numb face and arm and I was convinced I had been correct and did have a brain tumour. The panic attack subsided after I calmed myself down a little bit but I am so anxious that I have a brain tumour. The numb feeling disappeared after the panic attack. But i have a dull headache, had a twitchy eye sometimes, and neck twitches. Sometimes when I really think about it I feel like I can’t focus or keep my vision straight. I can’t stop panicking about it I’m really really scared that there’s something wrong with me. I’m gonna go to the doctors to ask about it but i just needed to vent. I feel like recently I’m spending all the time thinking I have a brain tumour and it is honestly terrifying me so much.