4. Brain aneurysm
If you’re having the worst headache you’ve ever had in your life and the pain seems to be hitting you all at once, you need to get the ER immediately, as it may be a sign of a brain aneurysm.
Pay attention to your body. If you rarely get headaches and all of a sudden you begin experiencing a flood of headaches, your body is trying to tell you something – don’t ignore it!