A ghostfeeling is inspiration. For some reason, the feeling of ghosts is the feeling of inspiration. I guess a ghost goes inside you and makes you feel this inspiration? Oh, wait, you can feel that because you have the sixth sense.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
She’s a spiritual person with a strong sixth sense and can talk to people on the other side.