No, this jolt would not cause a concussion. You would need to break your sternum and ribs before the impact would have enough energy to traumatize your brain. But, such a jolt can still be very upsetting, both from the pain and the startle.

This is a common new hazard as many people walk with their eyes on their smart phone. Hope that wasn't your mistake. YouTube has lots of these videos to laugh or cringe at. I cringe. Ouch. It hurts just to think about it. Just don't watch them while you are walking down a sidewalk, especially if it has a parking meter than can jump out and get ya.

You weren't being an idiot. You were just being human. We've all done things like this. We just try to avoid posting them online.

You'll be fine.