Yes. Sometimes you just get a bit burnt out. I suggest taking a small break. Eventually, you'll feel the need to kick some ass again, and we'll be here waiting for you. 
Free Step Dodge
Brute
Fiend Busa
Yea its normal, im pretty burnt out of doa as well
Step
That's happened to us all of us, its at the point now when I doa I just don't try at all the games more enjoyable that way
SilverForte
That's why I have a variety of fighters, if I get burnt out on one of them I go to another for a while.
AkaShocka
I've been there..... I also raged over Ayane while doing so. Lawl.