Man, this is pretty darn good!
I was skeptical at the beginning, since the piano chords being repeated over and over just gave me a mild headache, but once the drums kicked in, the tone was much more fully established and I was filled with a sense of panic, and judging by the title, this was intentional.
The later middle portion DID reassert my skeptical state though, since something felt a little... lost. I don't know, but the panicky feeling was changed to... as you put it, a "battle like mode." I felt that expansion on that sense of dread would have done wonders. But, that's my opinion. I still like this a lot.
Please contact me if you would like to use this in a project. We can discuss the details.