Worried I may have been hit by a bus, but I think it may have been an anxiety attack?

26 Male, relatively good health

I had gotten off a bus in Manhattan and was walking on the sidewalk near the bus. The bus moved away while I was on the sidewalk right near it, and I became worried that maybe it hit me or brushed against me.

I did not feel any clear impact, bump, push, scrape, pain, or loss of balance. I did not fall, and I’m not currently noticing any obvious injury. I do have anxiety/OCD and health anxiety, and I believe this may have triggered an anxiety attack, but I’m still worried because the bus was close to me.

Would I know if I had actually been hit by the bus while I was on the sidewalk? Based on not feeling an impact and not having symptoms, should I seek medical attention, or is it reasonable to monitor myself?