i met with accident on 23rd Dec 15 at night 1am. and this symptoms had started on 24th Dec 15 around night 2.30am. so answer to your question is duration of 1 day.

on 24th night, i felt like my left hand was feeling like some electric waves are flowing in it as soon as i m started to sleep, due to which i had to wake up and again after few minutes when i tried to sleep.. again electric waves started coming. i could not sleep till 5 am. but after that i could sleep till 7am without any problem. and that morning my left hand tingling and numbness started.

This problem is worst at night and morning starts with dizziness.
Also i feel sometimes drinking tea makes it worse.. but i have not tried to stop tea.