While it is normal to feel tired after a long day or poor sleep, sudden and overwhelming fatigue without explanation can be an early stroke warning sign. This type of exhaustion is often described as a heavy, draining weakness that makes even simple activities feel impossible. It may occur because a stroke is disrupting blood flow in the brain, which quickly affects energy levels. If you find yourself unusually exhausted without reason, especially if it comes on suddenly, it should not be ignored.
