Hi Mindfulliving,
I agree with Msunn's excellent advice above. Journaling definitely helps. I haven't tried doing it on the computer, as I like the feel of pen and paper. But I can't think of a reason why journaling on the computer wouldn't work. I'm curious to see what others think about this.
Anxiety is TMS, and your brain is using it to distract you from emotions you are repressing in the present. Journaling will help you uncover these.
When I began working on my TMS with journaling and other techniques, I found that I had repressed my emotions for so long that I didn't even know what it felt like to feel emotionally anymore. I had confused thinking about emotions with feeling emotions. What I now know is that emotions are felt in the body, not described with language in the brain. So what you may be experiencing is that with your mindfulness meditation practice your thinking about your emotions has quieted down, leading you to believe that you are feeling less, when you are actually thinking less. This happened to me prior to learning about TMS, when I was doing a lot of meditation. I began to feel like I didn't care about anything anymore. There were advantages to this, as I was much more calm and even-keeled, but life felt very bland. I now believe this was due to the phenomenon I describe above. I was thinking less, but still not really feeling emotionally. Since practicing TMS healing techniques like journaling, I'm now actually feeling my emotions. Initially with the journaling, mostly negative emotions came up and it was difficult. But I now am able to tap more into happiness and joy, and even find myself laughing out loud more and more.
I hope this makes some sense and is helpful in some way. Best wishes on your journey...