Re: I am feeling tired and lethargic all the time
Sounds like you have endoctrine problem, such as thyroid and Diabetic, both of which causes 'extreme tiredness.'
Also, some of mental issues cause this, 'tiredness,' even a sleep of more than 8 hours'. But, sounds not depression, rather physical issue.
Try to make an appointment with a good endoctriologist who handles thyroid and diabetic problem.