the night before last i took my medications went outside with my dog, sat in a chair at midnight i woke up at four am with no feeling in my left hand and alot of my arm. i first figured it was asleep due to poor circulation from me leaning on it unaware so long. by five thirty am it got worse untill eventualy i was terrified , becuase it was not returning feeling. it is still completly numb in my thumb and some fingers. and i have very little grip ability and no abilty to flex my wrist upward? please help