You could have a underlying health problem if you feel tired all the time. Some illnesses, such as cancer, can make you feel exhausted all the time. Heart conditions and people recovering from medical treatment are also more likely to feel tired.
You may feel tired all the time because you don’t get enough sleep. It could be that you have a sleeping disorder, or simply feel restless at night. Caffeine can also cause you to feel tired.
You may experience other symptoms as a result if you are experiencing fatigue all the time. This could be due to underlying health issues or lack of sleep. You may also experience some of these more common symptoms if you feel tired all the time.