For me, with the sciatica and bulging disk, it's kind of the same. There's something seriously wrong. I have an MRI to prove it. But there's no horrible pain. But I could do something that would cause horrible pain. But nothing obvious. But I have a numbness and tingling in the edge of my left food, but no other overt symptoms. But I'm standing rather than sitting at the computer, but sitting (for brief periods) in other venues (at the theater, in the plane) doesn't cause me grief the way it was before. But I can pick stuff up and carry it without suddenly collapsing into agony, and my doctor hasn't told me to refrain from all physical activity — but there's still that Sword of Damocles over my lower spine, promising unpleasant times if some random die roll turns into a critical fumble.
Spinal clinic gets called Monday. Research on places where I can water walk commences shortly. Meanwhile, if I get testy when you ask how I'm feeling, or solicitously suggest I might want to not pick up anything heavier than a paperback book, it's not that I don't appreciate the sentiment or concern.
It's just that there's not a lot obviously wrong right this moment. And I'm tired the damn waiting.
(Photo via http://commons.wikimedia.org/wiki/File:Sitzkrieg.jpg)

