(名詞) 內心極度的痛苦。

Holden researches "psychache," or unbearable psychological pain, and how it relates to suicidal behaviour..."If they wish to address this sort of psychache then I think they need to focus in on which particular frustrated need is relevant for that particular individual," Holden said.
—Laura Payton, "Prisons must work to prevent suicides: expert," Toronto Sun, April 5, 2010

According to a study from Montpellier, France, "It has been suggested that psychological pain (psychache) is a key factor in the suicidal process...We hypothesized that more intense psychache during a major depressive episode would be a factor of vulnerability to suicidal behavior."
—"Research by E. Olie and colleagues in life sciences provides new insights," Mental Health Digest Weekly, April 19, 2010