Other conditions that can cause numbness and tingling are: 1  insect or animal bites. 2  radiation therapy. 3  abnormal levels of vitamin B12 or other vitamins, potassium, calcium, or sodium. 4  seafood toxins. 5  carpal tunnel syndrome (pressure on the nerves in your wrist).
New York City is considered the county seat of these five counties: New York County (Manhattan), Kings County (Brooklyn), Bronx County (The Bronx), Richmond County (Staten Island), and Queens County (Queens).
These five are each called borough in context of City government - Manhattan, The Bronx, Queens, Brooklyn, and Staten Island (formerly Richmond); but are still called county where state function is involved, e.g., New York County Courthouse, not Manhattan.