relatively common for me.
that sadness soon became my norm.
but how intense is it? i feel bit agitated, and bit depressed. But never at a point of wanting to hurt myself, etc. Depending on the severity and if it does have some major impact in your daily activities, you may want to check that out.
If I have nothing concrete to anchor the mood to, then distraction is my weapon of choice most of the time. Just get out of the house and do something different, or something that has reliably changed my mood before. The few times I've found to have an unshakeable low mood or numbness that I couldn't be distracted from, I sought the assistance of a counselor which seemed to help, or maybe it just passed.
The one who buggers a fire burns his penis
-anonymous graffiti in the basilica at Pompeii