My Friend And I Can Read Each Other's Minds

For 8 years, Dianne has been my best friend, and for at least 6 years, my only friend. Now she is not my only friend, and I hang out with others, but I have never experienced anything like this with any of my other friends. One day Dianne and I were bored, so we decided to try and guess what the other was thinking, as a game. She sat on one side of my room and I sat on the other, then the other person would write their word down and think it. (we also did this with colors, sounds, and numbers) we did 25 from each category, and in total, I missed 3 and she missed 4.We were extremely shocked when this happened because some of the words were really weird (ex. Dorsal fin, trombone, jungle) We've always been really close and been able to tell what the other was feeling, but we thought that was normal. We both get gut feelings, but I'm pretty sure everyone does. Dianne sometimes has dreams that come true, and sometimes I think something before it happens, but only a few moments before hand, so I don't think that is anything physic. I'm not sure if Dianne has had any other physic experiences, but I've always had this weird thing where I can pick up on how a place "feels", and I'm pretty sure I can feel ghosts. (not constantly, but in certain places like at my grandma's house, which is over 100 years old and she no longer lives in because she fell and doesn't feel safe living alone after that) Why do me and my friend have this "connection"?Do you think this is physic, and why can't we do it with other people? Why are we just now able to do this? Any comments or suggestion about this is appreciated!