Rich
                    
                    
                    
                    
                    
                    
                    
                        
                        
                        I recommend getting an MRI.  I did, and it was negative, which was very comforting to learn.  I get frequent migraines that differ in type, duration, and intensity.  The drug Imitrex (Sumitriptan) works wonnders for me.  Best of luck with your problem.