Post-Vacational Depression

I know most people have heard about what is usually termed Post-Vacational Stress. Which, as far as I understand, means that you get stressed out by the sheer amount of things you have to do once you return to the daily routine.

My case is different. I believe I suffer from what can only be termed as Post-Vacational Depression, because it is the only way I can describe it. When I return from a really enjoyable holiday, or simply from a short vacation, I find myself with no motivation to do anything. I don't feel like reading, nor like playing anything, and surely not like studying. I have less apetite and usually spend some time thinking what I would be doing right then were I too be still on my holidays.
Perhaps depression is too strong a word for these feelings, but it is the only one I can think of.

Of course, it never lasts more than two, three days at the most. And if I have something else to do which cannot wait, my mind is easily strayed from such gray thoughts and I find myself back on my feet, so to speak. And simply remembering the trip and the fun had allows me to forget soon enough any troubles I may encounter during those first days, and get back to my way of life.

This text might be difficult to understand. It was written during an extremely sleepy moment after having been teaching my cousin for 5 hours non-stop (except for supper), so that the post I intended to write trying to explain this could have degenerated in something chaotic and weird. My apologies if that was the case.