After night of grinding, fullness in ear, muscle ache?

See dentist. This kind of pain is very common in people who grind their teeth. You should see a dentist who can make a mouth guard for you to wear at night. It will protect your teeth and decrease pain in muscles. Also it is a good idea to look at things that may behind the grinding. Are you stressed, do you watch stressful things on tv before you go to bed, are you anxious about things etc. Meditation helps.