Feathers From Above

My sister and I were home. My mom was at work, my dad- somewere. Anyway, I was on this site. My sis opened the door and all of a sudden I saw dove feathers fall from the ceiling. Then I got the smell of flowers and fresh sheets....like before. I asked my sister if she saw that....and smelled that. She said no and looked at me like I was a crazy. Yesterday my mom, me, and my sis were eating dinner. We were talking when she said, "you know the strangest thing happened today, I was talking with our neighbor, then...." I cut in and said "You saw a single dove feather fall...right?" She replied a simple yes. Although she looked so stunned. I went on and said "and only you saw it?" Yes, is all she could say. Anyway I told her what I thought and what happend to me. My sister was being stupid and started to tease and poke and make fun if there was a ghost. I told her to never do that. Anyway she does not believe. But if there is something in the house...