So I was working in 3D and I guess I pressed some kind of button or something that caused my 3D cursor to only move along the x=0 line. If I move my cursor up, it moves it lightly sideways. It stops when I move into side/top/front views, but as soon as I pan into 3D view, the cursor only appears along the x-axis. I'm probably overlooking a simple AutoCAD command, but I'm a new user and I can't find the answer anywhere in the manual or on the internet.
You have the UCS rotated so the Y axis is not showing. Use UCS, W to get back.