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Hi Sue, The ringing in the ears is called Tinnitus. It can be a side effect of medications (check what you are taking) or for me, it can also be a sign that a migraine is on the way. It could also mean a number of many other things, depending on other symptoms you may have.
Ringing, Buzzing, or Chirping Sound in Your Ears? What causes my ears to ring? About 50 million people in the U.S. and 1 of every 5 people in the world suffer from tinnitus (tin-night-us or tin-i-tus), a bothersome and sometimes debilitating condition that affects the auditory system.