What Causes Dizziness And Severe Pain In The Biceps?

Question : I am experiencing dizzyness when I lay down along with excruciating pain in my right arm / bicep area. The arm pain is intermittent and associated with arm position. I am unable to lift my arm fully over my head and lateral movement often leads to massive spikes of pain that debilitate me for 1 - 2 minutes. I previously had a similar issue with my left arm about 2 years ago, which failed to respond to medication (muscle relaxers and anti-inflammatorys) and was ultimately only resolved through vigorous (and painful) massage therapy over a period of 6 weeks. My wife suffered from the same issue (severe right arm pain with dizzyness) last year and had a similar experience (drugs didn't help, massage therapy did). I would normally just use massage therapy to address the current problem, but another person in my office is suffering from the same issues (arm / shoulder pain, dizzyness, loss of mobility in arm, etc.) and her husband also had the same problem a year ago. The fact that three people I know all suffer from such similar symptoms has me concerned. Is there a possibility that this is environmental or associated with some viral or bacterial malady? Any help would be appreciated.