Sam
                    
                    
                    
                    
                    
                    
                    
                        
                        
                           This is not common at your age.  I would suggest you get to a doctor as soon as possible.  There are many things that could be causing the memory problem for you, and should be checked out by a qualified physician.  With your history of epilepsy, you could have something very serious going on.  Please check it out!