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Do you have any pain on opening the aw, any sound in the ear while you do that. You should be properly evaluated for Eagle's syndrome which is a sharp long bone which may be pressing the inside of your tonsils. It is best to get evaluated by your ENT or Neurosurgeon, since Dentist
has not found any pathology. You may take pain killer like Paracetamol
under medical supervision for relief till then.