IS THIS MY SINUS'S OR ALLERGYS OR WHAT?

I WOKE UP YESTERDAY MORNING AND MY EARS WERE PLUGGED AND MY GLANDS FEEL LIKE THERE SWOLLEN ON THE INSIDE OF MY THROAT NOT THE OUTSIDE, MY NOSE IS NOT STUFFY AT ALL AND I DONT HAVE A HEADACHE BUT MY THROAT WAS A LITTLE SCRATCHY FIRST THING INT HE MORNIGN BUT IT WENT AWAY BUT MY EARS AND GLANDS ARE CONGESTED WHAT WOULD THIS BE FROM HAPPENING SO FAST OVER NIGHT LIKE THAT?????