A headache is a condition that causes pain or discomfort on one or both sides of the head. Headaches can also cause tension in other areas of your body, such as your jaw, shoulders, and neck.
The location of the headache and the type of pain you’re experiencing can indicate what type of headache you have. For example, migraine headaches tend to occur on one side of your head, and can cause nausea and vision changes. However, tension headaches occur on both sides of your head.
A nosebleed occurs when the blood vessels in your nose burst or break. While this does not typically cause pain, it can be uncomfortable and difficult to stop the bleeding.