Well you pretty much described the symptoms of depression. The one thing you said that really struck me is when you say it sounds kind of stupid. I think I've said that a million times.
One thing you have to ask yourself is if this is long term or short term.
Do you usually bounce back pretty fast or do you get stuck in an endless cycle. Maybe you can work through this or maybe it will destroy your life. I wish I had gotten help before things got so bad for me. You don't have to suffer for years like alot of us have.
I hope you get through this and if you feel like you need help do not hesitate to go to a Dr. or counselor. You can even look for a local support group, I live in a large city and there are a few. None of them are near enough unforunately but you may get lucky.
Hope you get well, Dan