I Am Feeling Extreme Weakness In My Hands And Legs.

i am feeling extreme weakness in my hands and legs. specially left arms very weak i can pull door also with left hand,even use key of bike with left hand. i am facing this problem since last 6 days.i consulted MD-General medicine and he said it vl be fine in few days but i dnt feel 1% relief also.he gave some vitamin tables and Electrolite to dink.but i dnt feel any benifite and now my hips and shoulder also started paining.