Hi @ronbode - about 30% of people with PMR develop Giant Cell Arteritis. If untreated, it can cause strokes or blindness. If you get strange pains in your head and neck, and especially trouble with your vision, don't hesitate to go to an emergency room. For me, the incapictating pain of PMR and subsequent diagnosis of GCA made treatment with prednisone a necessity. A good rheumatologist will try to find the right balance to manage your symptoms with the lowest amount of prednisone possible. Good luck!