Unable to get into game

Greetings!
I have been playing World of Warcraft on Icecrown for about a month now, and I must say I have never experienced any issues until now. I am not able to come into game by any means. For the last week or so I've always experienced high login queues, but I've waited 3-4 hours without problems, distracting myself for the period of time, knowing that I'll be able to play the game after the wait.
However, now, when I advance from login queues I get disconnects, I am either stuck in "retrieving character list" or even just stuck in the loading screen, followed by disconnect from server. A few times I actually managed to get into the game, I was there alone, unable to see any npcs or other players, even unable to exit the game from game itself. Alt+tab was my only friend for about 3 days now, and I'm losing hope that this thing is going to get any better

I hope if you could please provide me with any information about what on earth it is going on, I strongly doubt it is connectivity issues, since I was able to play the game for almost 1 month without any issues, whereas I login now, knowing I will probably not even manage to get into the game to actually play it.