Explore clinical aspects of severe headaches in this 26-minute video lecture by Dr. Sanjay Arora. Gain insights into nasty headaches, focusing on subarachnoid hemorrhage. Learn about clinical features, diagnostic approaches comparing CT and lumbar puncture, and thunderclap headaches. Discover decision rules for subarachnoid hemorrhage and new therapies. Enhance your understanding of emergency medicine and acute care practices for managing critical headache presentations. Part of The EM & Acute Care Course, this lecture offers evidence-based recommendations for diagnosis and treatment in emergency care settings.