It's possible that your account has been reviewed for fraud. I don't want to have you jump to any conclusions about it, but the exact same thing happened to me awhile ago where my daily budget was "exceeded" when clearly i had it set to $10k per day and it wasn't near there.

It's really not the keywords that will push the further review, it would be for another problem. You will be told within the ad*words panel if your kw's are unsatisfactory. Their support on everything is secretive and mostly unhelpful but i hope for you this is resolved and you can go on marketing.