Gary
Welcome to Healing Well.
You do have a situation as it does not appear you have never been with this person when she is not anxious. If she has been carrying Remeron around for 2 years it does not appear that she is serious about recognizing her anxiety disorder if indeed that is what it is.
I would suggest talking with her about her health issues and asking her to make an appointment with her physician to get her on the road to a better life.
I am sorry, but IMHO, if she does not, your relationship will not improve but perhaps become worse.
This can not be healthy or sastifying for you to be with someone who "has yelled at me, raged at me and stormed out the door in a panic mode to get away from the situation..."
Please attempt to get her to recognize her need for help, without her desire to face her problems there is not a lot you can do alone.
Again a Warm welcome and stay with us. :)