Internal whispers otherwise known as intuition. Often we hear of mother's intuition or woman's intuition but the reality is that everyone has it but not everyone listens to it.
When you learn to listen to that weird feeling you get ~ the one that makes you pause and think "hmm is this a good idea?". When you get that feeling which is your intuition, it is often not wrong especially when it comes for what is best for you. It's not the same feeling as nerves but it is a feeling that needs to grab your attention. It is often the feeling that leads you to safety or can make you say "no" to something everyone else is saying "yes" to. It knows what's best for you and will help you grow.