I don't know how it happened
I could only grab an object and move it in increments, as if I was holding "control"
Only grab/move/translate is affected, the other transformations like rotate and scale are normal.
If I hold control while grabbing, it'll inverse it and allow me to grab normally and smoothly.
Only the blender file I was in is affected, if I open other .blend files the problem won't be there.
Does anyone know how this happened and how to undo it?