I was diagnosed in June 2024 when I went to the hospital emergency room for vision problems. While I was at the hospital they did a lot of tests on me. The tests included an MRI of my head, EKG, EEG, and ultrasound of my heart and aorta. So those tests confirmed that everything was ok at that time, except for the arteries in and outside my head affected by the GCA. Several months later I asked my rheumatologist if they would monitor my aorta, and she said a cardiologist would do that if I ever had any symptoms suggesting problems.