I M 81 YR OLD FEMALE. I LOST MY BALANCE

I M 81 YR OLD FEMALE. I LOST MY BALANCE 2 DAYS AGO AND FELL AGAINST THE KITCHEN STOVE. SINCE THEN MY RT SHOULDER AND ARM ARE VERY PAINFUL. CAN'T RAISE MY ARM OR LIFT ANYTHING WITHOUT PAIN. PAIN IS MOST OF THE TIME IN MY UPPER ARM, BUT ALSO SOME IN SHOULDER.