Sandy
                    
                    
                    
                    
                    
                    
                    
                        
                        
                        Hello, my niece here in SA experienced the same  problems as you,  after several tests   shey discovered a tumor on her pituarity  gland and the pressure was causing her body   to t hink it was pregnant.  She has under  gone surgery to remove the tumor, (not  malingnant) and she has experienced her  first period already. She is doing fine  and is losing weight.  The surgery by   the way was done via a gap above herfront  teeth and not through the skull.  Maybe  its work finding out.  Good Luck