11. Feeling Faint

Source: TopLine MD

This is normally due to hormonal changes.  It happens when the brain is not getting adequate blood/oxygen supply. Often happens when you stand up quickly from a chair or bath or from lying down. 

Before you rise from whatever position therefore; sit for a few minutes; count from 5 to 1 before you get up.  This allows the body to readjust its circulation accordingly for the brain to keep functioning normally.