Arteritis means one or more arteries are inflamed. Because arteries feed every organ, symptoms can pop up anywhere, but most people notice pain, color changes, and fatigue first. Localized pain is the early clue. It feels like a deep, throbbing bruise along the course of an artery, often in the temples, neck, or limbs. Color changes show up next. The skin turns red, purple, or blotchy over the inflamed vessel, especially after cold or exercise. Low-grade fever and night sweats are common. You feel cold one minute, hot the next, and wake up soaked. Fatigue is constant. Legs feel heavy,... Learn more