Time Flies, so why can't I?

My sense of time has been a little wacky lately. Normally I have a hard time living in the present. Either I am anxious about something happening in the future, or reliving past events. However, lately I have been able to live more in the moment. This seems to have the odd effect of making ardous tasks seeming fly by and more enjoyable ones last longer. I must admit that this was at first an unsettling experience. Yet the more I reflect on it, the more I like this new relationship with time. I only hope it does not have unforseen complications. While thinking on what could be the cause of this new experience I have come up with a couple theories. One is that I am simply growing up and this is one of the things that changes as we move more into the realms of the adult world. My other theory is that time is a vain mistress, knowing that she is in complete control and wants to be admired for such power. When things are unpleasent one tends to pay more attention to the passing of time. Time wants to prolong the acknowledgement of it's existence as long as possible. While when time is ignored, it becomes angry and even jealous, thus speeding up the passing of the moment until it is admired again. These theories are simply that, theories, and I do not claim any hard facts or evidence other than my own experiences and musings.