No, you are not suffering from multiple personalities, everyone has voices that speak to them from within. Sometimes the voice whispers quietly; other times it screams like a banshee. Listen to your inner voice. It’s there for a reason. These voices distill so many things like what you see, hear, experience, your past experiences, even things you cannot name.
The more you listen to your inner guide, the more it will speak to you and help you. Find quiet times to turn off the audible noises and distractions. Listen quietly and see what you hear. It’s speaking to you for a reason.