Need some Anxiety Help and information..!!!

I don't know how to express such a worst feeling with words.
From last 5 months I'm suffering from Anxiety disorder. One Anxiety episode last for 2 days with me from morning to my bead time. Then for next few days there is no sign of anxiety.
I'm really afraid of very little things. Thinking the worst part of any event come across me. And most of the time I feel irritate and feel doom. It's really impacting a lot in my work as well as my day to day activities.
Now I'm loosing interest from everything which I was used to. Always I think I'm going to pass out and for whom I should do this or that?

The worst part which is giving me unpleasant sensation is that I never feel good(From morning to Evening).

Please help me out of this situation. I don't like to stay with this feeling for whole of my life.

I just need some more valuable information about anxiety and the technique how to cope it?

Thanks,

~ BJ