Stephen King said this quote

We see her go through dangerous mood-swings, but I tried never to come right out and say Annie was depressed and possibly suicidal that day or Annie seemed particularly happy that day.If I have to tell you, I lose. If, on the other hand, I can show you a silent, dirty-haired woman who compulsively gobbles cake and candy, then have you draw the conclusion that Annie is in the depressive part of a manic-depressive cycle, I win.