well i had my post concussion since may 2011 the dr. who says nothing wrong have seen my spytoms all the way she my first neurologist my balance is was off and on speech and memory off headaches real bad i told her since this happen i been deppress there fore she took it and thats all she stood on nothing else she only perscribe me medicine for my head then i went to go visit her again i sai im having black out uncontrolling shakes she still say its stress so there is something wrong with this dr. even when i done testing you seen the uncontroll shakes and still nothing wrong with my brain hello !!!