Ghost/demon believers question?

I had this experience with my boyfriend and his cousin. They were pissing a ghost off by calling it bad things and it would occasionally throw somethin a pencil,a rock (no idea how the rock got in there still). Anyways I finally got brave as the only girl and said I bet you like my cross necklace (bf gave me) n it burn me, leaving a small bubble on the skin near my nail. Does this sound demonic or demon like or ghost, why would it do that? Also today I felt attatched to the room we were in and didn't wanna leave, I got mad a picture of st.Michael when brought to me like pissed off and I don't kno why it is was just a feeling.. wat is this to you?