Answer:
To my knowledge it can make you feel anxious and your body has no way to work that out than doing things that clear your mind and make you active. When people make important decisions the fear will cause them to second guess everything sometimes it is good some times it can be bad. Fears like being scared of normal everyday things or perhaps your biggest fear it could even be fear of some one of some thing loved and so on.
Explanation: I am pretty good at English hope this helps!! :--)