Right temple pain for 3 weeks

Hello friends,

I have had a sharp pain in my right temple for roughly 3 weeks.  The pain comes and goes roughly every 20 minutes or so, and lasts only a few seconds.  It is localized in the same spot on my temple.  No medication has helped with relief and the pain has not stopped the entire 3 week duration.  I have always had headaches, however they were always easily treated with ibuprofin.  My parents do have a history of migraines.  

My doctor gave me antibiotics to rule out a sinus infection 2 weeks ago, with no relief.  I thought that perhaps the pain is from a pinched nerve from shoveling snow (the onset of the pain started the day after a big storm and a lot of shoveling) so I scheduled a massage, after 15 minutes the pain was bad and I requested the therapist to stop.  After the massage was the worst day of the pain, it was much more frequent.  I have also had chiropractic work without relief.  

I have had panic disorder for 10 years that is treated with clonazepam.  This pain is spinning my health anxiety through the roof.  My quality of life has gone down drastically, I am depressed and most of all afraid.  My brain naturally goes to the most catastrophic place.  It is not the pain that gets me, it's the fear.  

I have searched the internet to try and find someone with similar symptoms, but no avail.  I will be scheduling another appointment with my doctor as well as get an eye exam, and have a dentist look at my teeth.

Has anybody out there experienced anything like this.  Any advice or comfort would be very much appreciated.  

Thank you very much in advance!