Worry and apprehension are normal. At some point in time while we have been on vacation, each one of us has felt a surging anxiety about whether we turned the water tap off or disconnected the gas or locked the door appropriately. Praying or performing ritualistic offerings to ease off worry before a presentation or examination or important life event is a norm in several cultures. Getting negative thoughts amidst positive life events is also a typical reaction because one needs to be prepared for the worst in every situation. Keeping track of adverse outcomes midst confident efforts is the way to go. That's called positive pessimism and it works in all situations. However excessive and unwanted worry that does not lead to betterment in performance, rather acts as an obstruction to it, warrants attention.
