Past Life Spirit Still Here

My story has three main points that lead me to believe a person from my past life is still here in spirit.

First there is a time when I was 12 me and a male friend from a couple years above me ditched school (not something I would condone to day but you will do these things as kids) And we climbed over the castle wall when it was empty (A little rebellious or maybe felt drawn in) the castle door was not locked so we went in when we got to the top we sat down. After maybe 5 minutes the door to the roof slammed shut. My friend looked at me and I shrugged it off saying it will just be the wind, just at that minute we heard rather loud food steps along with some strange squeaking noises coming up the concrete steps. We knew there was no way we could have passed this of as something normal so we pulled the thick, wooden door back open and left the castle.

Later in life I had been sitting at a family party with everything seeming normal but I suddenly felt like I had been pulled away. I could see people around but felt like if I tried to talk to them they wouldn't hear me, like I was there but I wasn't. I then heard someone talk to me but I couldn't understand what they was saying then the person laughed. It wasn't just hearing him could actually feel him at the side of me and talk right into my ear. Then I felt like I was 'back in the room'. I looked around to see if anyone was near me but they wasn't.

Then just a few days ago I had a dream. I was at the castle on a ghost hunt. The dream had a really vivid/real feel about it. I was with a person that I knew and was being told history about the place. Eventually the dream got to a point where the person I was with was going to be taken over by a ghost. I assumed this meant the person was going to talk like the ghost but the person actually changed into a man who was wearing old style clothes. The dream was so real that I knew things like that wasn't possible and it scared me, I was wondering in my head what was going on. The person quickly grabbed my arm and I could feel it hurt. The person laughed and said hello petal. (The same laugh and voice I previously heard at a party) I instantly got the feeling that this spirit had been trying to reach me a long time and it had finally got what it wanted. Because I was so confused by the whole thing I called for my friend and asked to help and the spirit stopped laughing and said that he wasn't that person. I screamed but the grip on my arm kept getting tighter as I did. I had a real claustrophobic feeling and finally I woke up with no pain in my arm.

Im really confused by this whole thing and have no idea if its from a past life or if its an entity that's stayed with me since the castle but I know this spirit wants to make sure I know hes here. If anyone has any insight on this I would appreciate it.