than 10 percent of them know it. One of the reasons 1,800,000 Americans don’t know that they have celiac disease is that it is “The Great Imitator” (an honor previously bestowed on syphilis), expressing itself in so many varied ways. While 50 percent will experience the classic cramping, diarrhea, and weight loss over time, the other half show anemia, migraine headaches, arthritis, neurological symptoms, infertility, short stature