That sounds like me! I'm not diagnosed as peri-menopausal but I think I am. My Mom got really mean during menopause so I talked to my doctor and got something to take the edge off. It takes several weeks to work because it builds up in your system but it did help. All I had to do was hear a co-workers voice or my DH's voice and I was literally gritting my teeth so hard I had my jaws out of alignment ... and the kicker was they didn't even have to be talking to me ... just hearing their voice did it!!! I was not normally a moody person and was generally upbeat that's what made it even worse. I knew I was being an unreasonable nasty person and I hated feeling that way.
Susan