I HAVE BEEN SUFFERING A GRADUAL DETERIORATION IN MY BALANCE - AT THIS POINT IT IS DIFFICULT FOR ME TO STAND WITHOUT HOLDING TO A CHAIR OR FIRM OBJECT - I DO WALK ABOUT A MILE A DAY USING A CANE, BUT THIS IS BECOMING VERY DIFFICULT AS I LOOSE BALANCE - I FEEL MY LEGS ARE STRONG AND AM EXERCISING LEGS, ARMS, WAIST, FEET AS RECOMMENDED FOR IMPROVING BALANCE, BUT THIS HAS NOT HELPED THE DETERIORATION