If isn't normal, it's a concern. Considering 2 months ago CPU usage was normal, 2005 isn't 2 months ago. That's what I meant.
It might be some kind of incompatibility with windows or like you said the profile might be forcing the cpu into an erratic state. To note, I sometimes play on my laptop which has ubuntu linux installed and there doesn't seem to be any problems with the laptop's cpu while I play. I use exactly the same graphic settings/addons.
Also, for probably less obvious reasons I was wondering if it could be a security issue, somehow my wow.exe being hijacked for nefarious ends which could compromise either my computer, account or even both.
It might be an addon though, I'll try to isolate the potential problem further.