--that parathyroid dysfunction that made your calcium too HIGH would lead to neuropathy, though it is known that too low levels of serum calcium tends to produce tingling, especially around the lips/tongue/mouth.

On the other hand, high serum calcium does warrant further investigation--other than taking a lot of calcium supplements (and not getting enough balancing magnesium), there are some conditions that have that as an ancilliary finding that could also result in neuropathy secondarily, and a subset o these are serious, including a number of osteosclerotic/bone marrow blood cancers, such as myeloma. Don't want to be scary, but it's worth getting tested for immunoglobulin levels and type (looking for rogue antibodies, or M-proteins), and getting the more sensitive calcium ion (Ca++) tests, if you haven't already.