JD
                    
                    
                    
                    
                    
                    
                    
                        
                        
                        About 23 days ago I developed symptoms that come and go.  They include gurgling in my stomach that leads to diarrhea (occasional).  More distressing is a feeling of light headedness, tightness or pressure around my heart.  These symptoms come and go (lasting as long as several days or several hours)  I might have a few days in between with no symptoms.  Blood tests and fecal tests revealed nothing.  Please help!