Annoying cough, no idea what caused it, could it be from anxiety?

The past few days Ive had a cough. At first I thought it was allergies, then I thought it was a cold, then I had an earache and thought it was from my ear. Well the allergie thing has gone away, and cough drops don't help it. Then I realized, could my cough be a tic? Last week I was mocking someone who coughed alot, since then I have been. Its a short, dry, cough. Could this be a tick of my anxiety?