SOMEONE I KNOW ,SHE STARTED REPEATING THINGS SHE 51 NOW

SOMEONE I KNOW ,SHE STARTED REPEATING THINGS SHE 51 NOW 2 YRS AGO I'VE NOICED THEN SHE COULDN'T GET HER WORDS RIGHT... NOW SHE ONLY CAN SAY YES TO EVERYTHING..LAUGHS ALL TIME..CAN'T SIT STILL PEES HER PANTS..WON'TAKE SHOWER UNLESS U PUT HER THERE USE TO B A CLEANER NOW WON;T DO ANYTHING PACKED HER CLOTHES FOR A TRIP PACKED A BAG OF SWIM SUITS.ANY SUGGESTIONN ON WHTS WRONG? BEEN TO 3 DIFFERENT DOCTORS