Turns out I herniated the disk between my 4th and 5th vertebrae. I seen the doc today, got x-rays, and did my first session of physio. Now that I know what the problem is I can focus on healing. The Physiotherapist said no lifting for at least one month. After that I can try some light lifts to see if I can support heavy compressive loads. At least it's not permanent. Now I'm wiser for it.