Sounds like you were lucid, if you were aware that you were dreaming at that moment you were lucid, sometimes awareness can be low and due to not perfect waking memory one in dream can do some stuff that he would ask 'why?' after waking up, like following dream plot while still being lucid, it happens. At the same time it could have been non-lucid dream about actions that one would do when lucid, it can happen sometimes though i haven't experienced that personally, the ways to check are: dream recall that feels to be closer of non-lucid and feel of not being aware of dreaming at all, but really in those cases it's only up for dreamer to decide whether it was lucid or not, and even if you were not it's still a good sign that you think alot about lucid dreaming.