It's not your wife, is it? (sorry!!!)
Speaking from the experience of last month, a half shaft will tend to clunk as it wears, not whine. You should be able to check your halfshafts fairly easily to see if you have play. I can send you a video of what you DON'T want in your halfshafts if it will help ;-)
I'd check the oil, as mentioned. It won't hurt anything, and may help.
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