I was diagnosed with celiac disease by accident.
I developed an ulcer in my throat 2 years ago and went to see a gastroenterologist for treatment. I ended up getting an endoscopy so he could get a better look. When I woke up, I was greeted with the familiar though startling line: "I have good news and bad news."
It turned out that, while my ulcer was all but gone, the doctor noticed how smooth the walls of my intestines were. He told me that he thought I had celiac disease and had taken a biopsy during the procedure to confirm.
After the biopsy and a subsequent blood test both came back positive, I was officially diagnosed with celiac disease. I had never expressed any symptoms my entire life. Switching to the diet has not altered my health or how I feel, but I have stuck to it because I understand the long term repercussions that ingesting gluten can have on my body - even if I can't feel it now.