Mulan 12 joined the army. How does she spend her bath, toilet and physiological period?

Hua Mulan's courage and wisdom in joining the army as a father must be higher than ordinary people. Taking a bath and going to the toilet can definitely avoid people's eyes and ears, and the soldiers on the battlefield are very fierce, and no one will care about these. As for the physiological period, the war is hard, Mulan's physiological period may be unstable, and the rivers of blood on the battlefield may not be obvious.