Is it normal to become overwhelmingly pessimistic?

Unfortunately, this has become all too common.
The main reasons for this is, 1) because there are far too many people competing for too few resources and 2) our Socio-political systems have broken down and these have caused many of us to live in an isolated corporate environment (even though there are more people alive than ever before).

Meanwhile, the greedy corporate political elite, sits on their hands, with their heads buried in the sand, and pretends that there aren't any real and very serious issues to deal with. All they do is scream for more.

I wouldn't have considered myself depressed that day, but there was once that I was seriously considering suicide for no reason other than I could. I was feeling the pointlessness of our existence in the universe, and figuring who the hell would be around to care for more than another fifty years. But I'm glad I didn't. :)

My life has been quite a bit different then most, and I"m quite happy with it. However, I do get a feeling similar where I wonder what it would have been like if I had made some easier choices... or even just different ones. Life can go in so many different directions, it seems impossible that I only have one to try and live it all in.

Yeah, every now and then I have these weird realizations as well. Usually not as bad as that though.

In spite of the fact that I live under quite different life circumstances, I have such feelings almost every day. With one difference - in my case it is not a sudden feeling, an exception from otherwise optimistic rule, but it is a stable and permanent feeling. More of a rule than an exception, so I got used to it over the years.

There's nothing wrong with being pessimistic. People who walk around happy and smiling all the time are usually candidates for the loony bin. Additionally, it sounds as though you don't have a lot to be optimistic about, no job, poor communication skills, etc. Why not go back to school and improve your situation in life? Learn proper grammar and use it. If you can't get a job in whatever field you've chosen, learn some other skill. Things don't just "happen," you have to do something to make them happen.

Well, it's reality, but if you look at starving children your live may not seem so bad at all?
I was also depressive but somehow I got over it after 2 years. Not that I'm extremely happy now, smiling all day, but now I see life in a different light.

Are you on your period?

You find nothing that is what you find.