There nerves in the feet have priorities in sending signals.

For example, cold has priority over heat. I would think that proprioception (involved in walking/movement) would have priority over temperature, or else you would fall. (and have injury).

So standing could be very different from walking etc which is constant movement and hence uses different nerves. The pain of sensory nerves is still there but being temporarily masked by the proprioception nerve priorities. People with severe PN eventually lose proprioceptive ability and don't know where their feet are, and at that point, wheelchairs are needed for the most part.