Holmes, I think Karren is right. Your wife is having a problem with your body changes.
When I started NBE, I decided to bring my wife into the picture from the start. It was not easy. I really feared for the worst. Not that she would leave me, mind you, but that I would get a large dose of rejection and condemnation. I did my homework before spilling my guts (yes, I had some guts), and made my case. It took a week before I got the verdict. Not guilty! That's how it felt. She's now on my side completely.
If you 'come out' to your wife, have a plan. Be prepared to make your case. If your wife truly loves you, she will look for a reason to support you. Of course, if she doesn't, it could be a convenient excuse to end the relationship, or, if not, just drive you deeper into the closet. I'm not trying to belittle the seriousness of your situation. It took me most of my life to come out to my wife about my 'second self'. As late as it is for me, I'm glad I did, but it is a gamble no matter how you look at it.
Good luck whatever you decide.
CK