Kathy
                    
                    
                    
                    
                    
                    
                    
                        
                        
                        Hi, Try looking for information on neurocardiogenic syncope.  My daughter passes out and has been diagnosed with vasovagal syncope.  We get a lot of encouragement from the FaintersUnited website.  You are not alone, there are others with the same problems your friend has.  Good luck.  Hugs, Kathy