I Suddenly Had A Sharp Burning Pain In My Left

I suddenly had a sharp burning pain in my left shoulder that burns. It lasts a few minutes then goes away. I didn't do any heavy lifting or exercise to cause injury. I have had a headache behind right eye for about 2 days but that is not unusual. I do get migraines a couple times a month and use ibuprofen for pain. the shoulder pain is new and unexplainable. Any ideas for this?