HCM, the pumping function is normal. but the heart muscle is thickened and. stiff, making it difficult for the heart to. relax and for blood to fill the heartâs. chambers. This limited filling prevents. the heart from supplying enough blood. to the body, especially during exercise.
What is Migraine? Migraine is a neurological disease characterized by episodic moderate to severe headaches with associated other neurological symptoms predominately autonomic symptoms. Typically, the headache affects one side of the head, is pulsating in nature, and can last up to 3 days.
Photo: Sheer Photo, Inc/Getty. Cluster Headaches. Known as one of the most painful types of headaches, cluster headaches are rare, and sufferers say they come in waves or clusters.. Headaches may be intermittent for weeks, even months, and are usually followed by a remission period that can last months or longer.