Strange Things Happen to Me and My Fiancee

My fiancee moved in with me at my parents house about a month ago and we both noticed some weird things that have been happening primarily to us. The first thing I've noticed is small injuries on me and him. We don't have anything near or in our bed that could cause these minor injuries and it's just weird. Before he moved in, at least three people including myself have all heard a woman outside my hall to me and my sister's room's talking and crying. My mom's boyfriend even asked me who I was talking to that night since he assumed it was one of us. He said, yeah, she's over there spinning. And then promptly went back to bed leaving