Wow! I thought I was crazy, until I read your post.
Prior to my diagnosis, I detected a noticeable change in the scent of my body perspiration. My husband noticed it, too. I tried different deodorants to counteract the problem, none of which seemed to work. I was taking two+ showers a day in an attempt to escape this very odd odor.
After my diagnosis and sequential treatment the odor began to slowly fade. Every now and again it tries to return, and when it does I revaluate my diet, stress levels, etc. and make changes accordingly.
Eating large quantities of vegetables, fruits, and herbal teas (preferably organic), reducing meat and dairy intake, and maintaining an exercise program seems to be the key to keeping myself healthy.... and odor free. lol.
In addition to seeking medical attention, please try to convince your wife to alter her diet and to begin exercising if she is not exercising already. It is especially important to give our bodies the nutrition it requires (preferably through organic whole foods) to maintain a healthy immune system.
I am also curious to know if any other women here (or their spouses) detected a change in their body scent in conjunction with their diagnosis.
Blessings,
Moon Masque