If you run your car hot how can you tell if you damaged your motor?

You can run a compression test, check for carbon monoxide in the coolant, ask the shaman to "throw the bones"... sometimes it doesn't matter what you do, the problem might not show up for as much as a few months.

If the compression is okay and you don't have carbon monoxide in the coolant, just drive it and enjoy.

Just to be clear, I don't have much confidence in the shaman.