Tap the Settings app icon on your iPad to change your default email account. Tap Mail, Calendars, Contacts.. Scroll down to the Mail heading and tap Default Account.. Tap an account to select it as your default. Tap the Mail icon and then tap the New Message icon.
The fear of falling (FOF) is a natural fear and is typical of most humans and mammals, in varying degrees of extremity.
A fright can cause your blood pressure to drop resulting in fainting. Stress can chronically increase blood pressure. So we all have psychogenic symptoms at some point in our lives, and we take them for granted. The fact that more dramatic symptoms can also result from purely psychogenic causes should not be that surprising.