According to a 2018 study by Ghanean and colleagues, fatigue occurs in over 90% of people with depression. So, it can be hard to tell the difference between burnout and depression. Watch this video to find out if you’re not just tired, but depressed too.Persistent fatigue can also be present when you have depression. If your sleeping patterns are constantly off-kilter ― whether you’re oversleeping or failing to get ample snooze time ― consider speaking with your primary care physician, even if your skewed sleep patterns aren’t accompanied by sadness.
https://www.huffpost.com/entry/signs-depression-dont-feel-sad_l_6022e901c5b6173dd2fa1630