Karen
                    
                    
                    
                    
                    
                    
                    
                        
                        
                        Beth, I too have been suffering from an endometriomal cyst right behind my left ovary.  I had a laparoscopy done after Thanksgiving & had improvement until I menstruated.  Two months later, the pain is unbearable.  I am now under the care of a pain clinic.  I would like to hear more about your blood cyst and what treatments you have persued.  You can e-mail me directly at peshat@aol.com.  Look forward to talking to you.  My pain doc says that endometriosis does not cause pain.  Would love to show him your response to that statement.