 Lenin was seriously ill by the latter half of 1921, suffering from hyperacusis, insomnia, and regular headaches.At the Politburo's insistence, in July he left Moscow for a month's leave at his Gorki mansion, where he was cared for by his wife and sister.Lenin began to contemplate the possibility of suicide, asking both Krupskaya and Stalin to acquire potassium cyanide for him.