If we can't vent here then where can we?
I guess the conundrum is if you try to make the best of it then everyone thinks there's nothing wrong with you and that you've just become a less interesting, less active and more grumpy person. Sounds like you were an active person with a range of interests and I can see why people thinking there's nothing wrong with you when you've lost things like your dancing would seem offensive, like they think you just can't be bothered anymore.
On the other hand if you try to show or tell people you're hurting then you end up looking like a malingerer or attention-seeker.
Unfortunately I don't feel aggressive any more, I just feel depressed. I'm going to try and get ithat aggression back though, as it felt much better than this!
Perhaps what I need to do is start a fight with someone too small to hit me in the head.....