A pattern-based guide to scalp tingling, “brain zaps,” migraine aura, nerve symptoms, and urgent warning signs in 2026. A tingling wave sensation in the head can feel like a ripple, buzzing current, brief electric jolt, crawling feeling, or pins-and-needles sensation moving across the scalp or face. The description is unsettling because it seems to come from inside the head, but the sensation often begins in the skin, sensory nerves, neck, or nervous system pathways rather than…