I am concerned for my wife. In her last job she was depressed and stressed. She had to find another job and took her last month off work for stress leave. Since starting her new job she enjoys it much more, is really driven and is working much longer hours out of choice and bringing her work home. Her social life has changed dramatically, she is going out a lot more and even sees friends during the week. She has also said that she is leaving me. The way she talks is that she has to make herself happy and can't rely on anyone else. To me she seems void of vulnerability and slightly emotionally detached. There are a lot of positives in the way she has changed but it seems like a dramatic change in a short space of time. I am worried there is something deeper going on with her mental health. Her dad showed what I think are similar symptoms and was diagnosed with bipolar a year ago. Am I right to be concerned?