Today I have noticed something very interesting about one of my scenes. I noticed that the hand of my subject was no longer resting upon the ships railing which tells me that the ship has raised a bit. So when I went to adjust the ships vertical position, instead of it moving easily and slowly to the position I wanted, it took a lot of movement of my mouse before it actually moved, and then it jerked upward about a foot to scale. This large jerking motion has become the norm for a variety of objects in this particular scene and I don't understand why. 

When I went to try and move the vertical slider bar I noticed something really odd. The X & Z sliders were still around the zero mark, but the Y slider was at 35,276,680.0 How could this have happened, and is there a way that this can be corrected?