repetitive music in my head that won't go away

Hi,

About a week ago I got a song stuck in my head... pretty normal right.  Well, ever since then, I replay the most recent song that I've heard over and over until I hear a different song.  I've also (in the last few days) gotten a dull, continuous headache.  A lot of pressure in the front part of my head above my eyes.  I don't have much energy and feel a little depressed.

My medications are sertraline (1 mg), allegra, lisinopril (10 mg), and I take about 3,000 mg of fish oil per day.  The only med that I have recently started is the lisinopril about 2 months ago.

My main concern is the music playing in my head.  I'm not hearing music or voices that aren't there.  I just have a continuous random song that is playing in my brain.  

Thank you very much for any help or advice that you can offer.