‘Stage’ is the place where we have to perform in a form of ‘Actor/politician/dictator/ etc. Some day or the either it is all about having a chance to reveal our inner persona like a secret or hidden truth of our skills/talents therefore the best part is to sense the ‘Danger’ of performance in front of millions and to present the right message at the right time and situation.

You can get feelings about speaking in public or trying to speak just by thinking; you don't have to actually be there).

It differs from individual to individual, the initial fear, by the way, may be nothing to do with speaking in public or trying to speak. We often hear from clients that the problem started at a time when they were under extreme stress for something completely unrelated, but the mind somehow associated the negative feelings to speaking in public or trying to speak anyway..

Here is the List Causes/effects of ‘Stage Phobia’ :

1) Slow Build : A slow build occurs when a mild case of Stage Phobia escalates over time to become a severe one. What is happening here is that the individual is 'accumulating' fearful associations to speaking in public or trying to speak, so that the evidence used by the mind and nervous system is becoming increasingly irrefutable that fear is the appropriate emotion. A self-fulfilling anxiety creeps in the spur of the moment with terror and sudden increase of ‘Heart beat’.

2) Repetitive Heart Beats/negative thoughts
3) Dry Mouth
4) Dizziness
5) Sweaty Hands/Shaky & Cold enough
6) Tunnel Vision
7) Panicky feelings/ Embarrassment
8) Blushing
9) Tight throat
10) Fast pulse/trembling Lips.