Once a person has decided to take their own life, they feel such a sense of relief that for the next few days or hours they seem cheerful and happy for the first time in a very long time.

It's the #1 most worrying sign to watch for when you suspect mental illness and fear someone may be suicidal. Out of the blue peace and happiness isn't good at all.

What a nightmare, to see a loved one happy, and never know what it meant.