Angry

I've found myself to be quite angry over the last week or so, yet I have no idea why.
I've been extremely annoyed by the slightest small thing, and have been quite sarcastic to anyone to offers any help (my apologies to The Demon). Again, I'm not sure why.
I kinda feel like smashing a window, kicking over a plant pot, just doing something destructive to alleviate my anger.

I thought getting out on my mountain bike last night would help me to burn off some of this rage, but my bike broke down after about 30 minutes and this just poured more fuel onto the anger fire, but when I got home and found out the price of a new part, I was angrier still!

Then I get behind the wheel of a car.
Lets not go there.

What the fuck is going on?!

Male menopause?
Mid-life crisis?
Nervous breakdown?

Be warned, Jaggy.