Unfortunately, not so funny when you’re getting nailed by back pain. The problem with back pain is that it is such a broad symptom for so many problems brought on by so many causes.
I remember a couple of stints of back pain I have had in the past. I was never really able to identify the causes or what made it better. It would seem to hit from nowhere and go away after a few days with no clues as to what was going on. The most strange thing, though, was that the only time my back didn’t hurt was when I was running. It didn’t matter if I was standing, sitting, walking, or laying in bed. If I was not running, it hurt. I have no explanation other than the back is a complex thing and, unfortunately, can’t offer you anything more than saying I know what you are going through and hope this subsides soon.