Should you or shouldn't you?

Most of the time if you have to keep thinking about whether you should do something or not then you probably shouldn't. Of course every decision you make you need to think about before you react to anything. But if you have to keep debating whether you should or shouldn't over and over again then deep down inside you know you shouldn't. When you feel it deep in the pit of your stomach it's not always gas it's your built in warning system trying to stop you from making a mistake. Sometimes what you are about to do could majorly affect your life in a negative way. Yet the warning goes off when you are Christmas shopping too to stop you from spending too much money for things that people don't need or even want.