"Narcissists feel empty. Narcissists feel invincible. But their emotional landscape is barren."
If you are feeling crazy, look to the newest person in your life and figure out if they are the cause of it.
As you encounter more and more people, you will find that being around some people can make you feel crazy. That is a good indication they are a narcissist, narcissists grow up not feeling the normal range of emotion, they learn that manipulation is something they are great at. As you are manipulated you will find that you feel more and more crazy, if you are feeling this way, examine who has joined your life since that feeling started and then do your best to identify and remove the narcissist from your life. It is the only way you to regain the feelings of sanity.