What Causes Numbness In The Legs?

HI IM 28 YEARS OLD, IM A MALE, IM 6'1' IN HEIGHT, AND 160 IN WEIGHT, AND MY QUESTION IS I HAVE A ROTTING TOOTH , AND IT GIVE ME REALLY BAD HEAD ACHS, AND I ALSO HAVE REALLY BAD SINNUS PROBLEMS, SO LONG STORY SHORT, IM WONDERING IF MY TOOTH OR MY SINNUSS COULD BE INFECTED AND CAUSING MY SYMPTOMS THAT KINDA MIMIC THOSE OF A STD? MY NECK HURTS ON THE LEFT SID GOING UP TO MY EAR, AND DOWN TO MY SHOLDER. AND I FEEL VERY HARD PREASHURE IN MY EAR AND HEAD ABOVE MY EYE. ALSO I FEEL LIKE IM DRUNK BUT I HAVENT BEEN DRINKING...LIKE A LOST OF MOTER SKILLS, AND A DIZZINESS. AND ALSO I SEE BLACK SPOTS. AND ALSO A TINGGLE AND NUMBNESS IN MY LEGS, MOSTLY MY THIEGHS AND FEET. IM REALLY REALLY SCARED! CAN YOU HELP?