It appears from the account of a relative of Amy Winehouse that the celebrity is a victim of an undiagnosed mental illness.
The late soul singer could have been struck down by the little-known Borderline Personality Disorder.
Sufferers have feelings of anger, emptiness, shame and guilt and become emotionally volatile.
It can also push them into substance abuse and eating disorders, both of which Winehouse succumbed to.
"It was never diagnosed, because unfortunately she would never agree to a proper diagnosis," the Daily Star quoted the relative as saying.
"I'm not an expert, but from what I've read on Borderline Personality Disorder it kind of fitted with her," the relative added.