Burning sensation in soles of feet.?

Burning sensation and pain in soles of feet at night(Male 56 year).Not able to sleep properly at night due to same.Taking sleeping pills still not getting  sleep due to that Normal sugar level.No other med. conditions .(HAVE very slight enlarged prostate due to which frequent  urination(Taking urimax sometimes)and Slightly  low b12 and d). Intolerable burning sensation and pain in feet at night due to which not able to sleep. Can someone  suggest any immediate treatment in case of high pain and to get sleep. Someone suggested me there is a nerve electric test. Can someone guide me which tests can I undergo to diagnose? Also please suggest any treatment for same. Also as another suggested to take vitamin b12 useful.Any good diet for same(Veg)? Also in case of  my mother (F-46 ) years ,high migraine since last 22 years. Taking summinat(Sumatriptan) 27 times in a month. Still sometimes summinat don't work then have to take sleeping pills to reduce pain. Any treatment for same.