I AM 58 YEARS OLD ,20 YEARS AGO IHAD FOUR

I AM 58 YEARS OLD ,20 YEARS AGO IHAD FOUR BAD INJURIES, FIRST I GOT HIT ON THE SIDE OF MY HEAD WITH A 40 OZ. OF BEER BOTTLE CAUSING ME TO BE RUSH TO THE HOSPITAL .I HAD A SERIOUS CONCUSSION. THEN TWO WEEKS LATER I GOT IN A FIGHT AND WAS HIT WITH A FIST THAT CAUSE A CUT ABOVE MY EYE I DID NOT GO TO THE HOSPITAL IWASOUT FOR SOME TIME. I DON'T KOHOW I GOT HOME.THEN I GOT IN ANOTHER FIGHT AND A PERSON HIT ME WITH A BIG ROCK THAT CAUSE ANOTHER CT IN MY HEAD. WILL THIS OVER A TIME OF 20 YEARS CAUSE ME TO HAVE BAD HEADACHES. ITS GETTING WORSE. TODAY I HAVE SERVE BACK PAINS.SOMETIMES I CAN'T GET OUT OF BE.WHAT'S WRONG? CAN I APPLY FOR SSI ? I CAN'T WORK LONG ON A JOB WITHOUT MISSING MANY OF DAYS,THAT CAUSE ME TO STOP WORKING BECAUSE OF MISSING SO MANY DAYS. IS THIS A DISABILITY? THAT YOU; MICHAEL C FLEMING JR.