Zoom/Scene navigation issue

I am making a scene of a room with the dimensions of 1600 x and y, I can rotate my viewpoint normally but when i try to zoom in it starts zooming in smaller increments until i can no longer zoom in at all, the same thing happens with panning. My viewpoint is near the walls of the room and I was wondering if this issue has to do with the size of my room. Should i change something in user preferences to fix this? This is my only blend file that this is an issue with btw.

It seems when i reload the file the issue is fixed, whoops!

When this start happening, try ortho mode (num pad 5). If perspective mode, select the element you like to work/zoom, then numpad [.]