I get that buzzing - vibrating - usually by the end of a day and throughout th night- it started about a year after my PN - feels like when standing up that the bottom of my feet are vibrating and moving in fast tiny lilttle waves (disconerting here in earthquake country) - and usually means a long night of leg shaking... my doc looks at me like I'm nuts when I try to describe this! Unforunatlely we apparently are sharing all this - but good to know thats its more common then let on.....
Rocking and rollin!