Shadows, Voices, And A White Figure

First off, for years I've heard someone call my name, and everytime it was a guys voice.

The first time was one day, while everyone was getting ready to go to church one sunday, I was sitting there watching everyone literally walking back and forth, when I heard "Jack".

Another time was while I was in bed trying to sleep, I heard a womans voice saying

"Huh Jack?..." (Jack isn't my real name. That's personal information...),

As if she were whispering into my right ear only, and saying "Cool huh?".

My first time seeing a shadow person was when we were driving home one day from the store, and we went under a bridge, then I saw this black figure (shadow person) walk behind the pillars holding up the bridge. Again, I thought it was just some person. Weird...

Well, in 2011 we went on a trip to Utah to visit my sister and some relatives.

All the adults were in the other room talking (loudly...), and the teenagers were down stairs playing video games and talking while I just stood there, staring and thinking as usual. I saw this shadow-figure going down the stairs to the basement. It looked like it wsa jogging, and it was the shape of a male. (again) It just appeared by the stairs to the family room, and jogged down the stairs. I didn't see it go down though, but I felt a presence down there. I thought it was one of the guys going downstairs for some reason so I thought "I wonder what he's doing down there..." Because we were sleeping down there, and there rooms weren't down there. Until a few moments later I found out that all the guys never left the room. I told my mom, and she said that it was a spirit. Later (This either happened the next night or a few nights later.) I was down in the basement with my mom putting something in my suitcase, when I saw this tall white figure standing in the bathroom. It was glowing, and I even saw an arm on it to. It was there a split-second then gone. It scared me. (I didn't see any human features, just a tall white figure with an arm... Nothing else.)

How come when I see shadow people it doesn't bother me, but when I saw the white figure it did? When I think about it it just gives me the creeps... (I know, that sounded old fashioned... But what else is there to say?) I don't want to see that white thing again... But shadow people, Sure! Any comments would help...thanks! (sorry if this is to long...)