Thank-you for that - it was really helpful. I am reluctant to see a medical doctor to get a diagnosis, but at the same time it would be nice to know what is going on for me. I am not on any medication and have been really struggling with my mood for a good few years - at least if I could pin my experiences on a label it could explain why this awfulness has been hanging around me for so long - had been hoping for a quick fix when I first started therapy. Thanks again.