The other choices at $500/oz. for silver will be either gold, or copper. And gold might be $5000/oz,. or higher. And copper is not a viable alternative. See, I have a brick of copper weighing 33 pounds in my shop to make this point. Copper is $3.24 per pound.
Compression of the leg nerves as they exit the spine causes shooting pain that can extend all the way down to the foot. The pain typically starts at the buttock and is felt on the side and back of the leg.
Leg pain causes can also be the result of a degenerative process, such that injury occurs to the structures as a result of wear and tear to the tissue over time. In many cases, the exact source for the chronic leg pain symptoms may not be known.