Freaking out

So I do have anxiety but today I was at a red light about to turn left and I didn't see anyone right so I let my foot off the gas and all of a sudden this dude is running in front of my car the same time I let go of the gas so I slam my break and felt my car kinda jolt/jerk. That's all I felt but it was a close call. I think the guy continued running but I'm not sure at the same time but yet the woman that was with him waited till I you know had my foot on the break and then continued walking with him and stuff.

But like would I be able to feel if my car did hit someone even at 1 mph or even if I gently brush them with my car or anything at all?? I am so freaking out and I drove around the block like once to see if they were okay and I couldn't find them at all so I have been looking online to see if there's any reports made and I can't find anything and I would never do anything like that on purpose do you think it sounds like I did hit someone or is it all in my head?