mood swing

Noun

 * 1)  A rapid and extreme changing in mood, from excessively happy to desperately miserable.
 * The worst thing about my wife's pregnancy was her awful mood swings.

Translations

 * Chinese:
 * Mandarin: 情緒波動
 * Dutch:, stemmingsschommeling
 * Finnish: mielialan muutos, mielialan vaihtelu
 * French: saute d'humeur
 * German: Stimmungsschwankung,
 * Polish: huśtawka nastrojów, wahania nastroju, nagłe zmiany nastroju
 * Russian: перепа́ды настрое́ния
 * Spanish: cambio de humor