Boanergez, hang in there as it will get better. When this first started about six months ago or so, it was hell on earth for both of us. We were headed toward a divorce or worse.
My wife just said to tell you she fully empathizes with your wife as she truly thought I was her "turd in the punchbowl". I, on the other hand, have walked miles in your shoes and there will come a day when you both can laugh about it. Until then, keep your chin up and remember how much you love her as that is what will get you through this.
I often found myself thinking about the things I loved about her when we met, when we got married, when we had our son, etc., to help me cope with this "beast" that had taken over my wife. And always remember that if it's tough on you, it's a million times tougher on her. Be kind, be respectful, try to empathize, and never, EVER look the beast in the eyes.

(You've got to have a sense of humor or the experience will be very difficult).
Since my wife has gotten help, she has taken the saliva test and is in the process of getting help. She takes tons of vitamins prescribed by her ANP who is a goddess with this stuff - thank God for women like this lady as she knows all about this stuff. She's also helping my wife understand this process and is very good.
As my wife said, she was lost in the forest and thought the rest of the world was all crazy. My son and I tried to have empathy, never argue, never cross her, always walked on egg shells and told her we loved her, but nothing helped and it continually got worse. Once we mentioned the M word and I thought she was going to kill both of us. It got so bad that my son and I finally ended up ignoring her out of avoidance and she realized there was truly something wrong - the advoidance spoke volumes to her. As she said, we put her in the position to ask "Why?" which caused her to seek professional help. She truly thought we hated her and she needed help understanding it.
Things are much better now and I'm so glad we all hung in there as she is the love of my life. Hang in there and it will get better. If you have an Employee Assistance Program (EAP) at your work, USE IT as it has helped us a ton. Menopause is this deep, dark secret that each of us (wives, husbands, kids) feel we must endure in secrecy. DON'T DO THAT as there is a ton of help out there and it is very common.
Bottom line - if you love her, hang in there and help her!
We didn't attend my company Christmas party this year as she didn't feel "right". I had told her all that week that we would go if she felt good...that afternoon she told me that she didn't feel like herself and that I should go...I didn't. As I told her, my supervisor and my coworkers - ther will always be other Christmas parties but I have only one wife. The choice was simple. Keep that attitude and all will be well in time.