Some signs to be aware of if you think a loved one is suffering from depression or considering suicide:

Disconnection or disinterest especially in things they once found enjoyable
Changes in sleeping and/or eating
Irritability, anger or wide and more frequent mood swings
Speaking of not being worthy or mentioning suicide even if they say, “I’m only kidding.” or “It’s just a joke.”
Complete silence
Giving away personal items and possessions
Turning to substance abuse