MY POOR CAT IS GETTING OLD:(?

MY POOR CAT IS GETTING OLD N I FEEL SO BAD BCUZ I DNT GOT THE MONEY TO TAKE HIM 2 THE DOCTORS.HES ALWAYS COMING TO MY HOUSE WITH A SWOLLEN FACE,MOUTH,BROKEN TOOTH HES MISSING ALL HIS FRONT TEETH HE LOOKS FUNNY BUT HE HAS PROBLEMS EATING,AND HES HOT FROM HIS BODY ?I TINK HE SICK HE GOT SKINNIER AND YOU COULD SEE HIS SKIN N STUFF HIS HAIR IS FALLING OF & HE ALWAYS SO DUSTY AND DIRTY HE HAS A STUFFY NOSE AND IT LOOKS LIKE BUGERS COME OUT HIS EYES....N RIGHT NOW HE HAS A BIG BALL AROUND HIS CHEEKS AND IS NOT LETTING HIM BREATH GOOD .HELP PLEASE :(