Although from a different trauma, I experience a lot of what you do as well. It is quite common, from what I've heard and read here.
If you haven't, you should definitely see a doctor, or some other sort of medical professional, and discuss what you're dealing with. If you need some help (therapy, medication, etc), it's best to get it as soon as possible, to get you on the right road.
I know it's not easy to admit when you're feeling like this, or feeling vulnerable or anything, but I do urge you to speak to someone.
I'm glad you've found this site. People here are lovely, and are so helpful. I come here often just to chat. Not to mention the advice and such people can give is great. Knowing there are other people in similar boats as you can really help.
I hope you find some ease from this site, and don't be afraid to ask questions if you have any!