C hristy
                    
                    
                    
                    
                    
                    
                    
                        
                        
                        Christie- I had giardia about 16 years ago.  Never went out of the country.  Didn't show up in fecal specimen.  Had to do a string test.  Thye make you swallow a string with something like flypaper on it.  I lost alot of weight quickly and did have diahrea etc.  They gie you a medicine with antibuse in it and it goes away.  however, it can always remain in your system, I was told and flare up under stress. Hope this helps.  Bonny