Why am I always tired? 22 medical reasons for feeling tired

Depression

Depression not only affects your emotional state, but can have a significant impact on your physical state. Some symptoms of depression include loss of appetite, headaches, muscular pains and fatigue.The loss of appetite can then again contribute to further problems with a lack of energy and feeling tired all the time.Moreover, depression often goes hand in hand with stress, anxiety and worrying. These can all be major factors in not falling asleep at night.Being able to switch off your mind is important for falling asleep. So if you do have difficulty turning off your thoughts at night.