I don't quite know what to say here...If you believe in such things, I imagine you could be affected in some mental and emotional way.......the key word here is "belief".......spirit cannot hurt you in any physical way and if you accept negative thoughts and feelings then it is up to you to overcome this by raising your vibration with meditation, etc....... You may have loved ones on the otherside that are trying to communicate with you......they are always watching over us, along with our other spirit guides.......