I am a 150 lb. 50 yr. old woman with no previous gastro concerns, no daily meds, a daily antioxidant supplement with a multivite w/iron, daily diet with variety of fruits & veggies, milk, yogurt, chicken, fish, beef, whole grains, & beans with very little processed food, no food allergies.  Lifelong exerciser, presently in pool 2x - 3x a week, but sedentary lifestyle past decade due to spinal injuries.  Developed bouts of severe abdominal pain and GI distress with heartburn & reflux this year.  Suspected two pain meds used occasionally for chronic back and neck pain (Percocet & Fiorinal) but discovered each time I eat pistachios, even just 10 or 12, I get the same horrible GI distress.  No itching or hives or other allergic-type symptoms.  Is this considered an allergy?  Is there a name for it, the way that gluten intolerance is called Celiac Sprue Disease or "wheat allergy"???
                                                        
                                                     
                                                    
                                                        
                                                            
                                                            
                                                            
                                                                posted on
                                                            
                                                                Fri, 14 Mar 2014 
                                                            
                                                            
                                                            
                                                            
                                                                
                                                                    
                                                                    
                                                                    Tue, 23 Dec 2014
                                                                    
                                                                    
  Answered on 
                                                                 
                                                                
                                                                    
                                                                    
                                                                    Tue, 23 Dec 2014
                                                                    
                                                                    
  Last reviewed on