Headache, jaw pain left side, ear, throa

Hello, I recently have developed a strange jaw pain at the hinge of my jaw, and just by feeling around i can feel that it seems to be slightly swollen. it is only on the left side of my jaw. i recently got dental work done on that side for a cavity. it hurts to open past a certain degree. it all started last night, but for the 5 days prior to the new pain i would wake up with a soar throat, runny nose, and mucus. i don't have the headache soar throat or runny nose during the day but once its time for bed it starts to come back until i get up the next morning. associated with the jaw pain came this weird ringing noise only in my left ear on occasion, it sounds like a beep around 8-14khz. it comes and goes and is more audible when i close my ear or muffle it. What could be wrong?