Hey guys i agree that it is really hard to discern why some people need more drugs than others. I was just quoting what my doc told me when I asked him this.
I think his exact reply was, "well, you are lucky to be so stable on just one medication, I have some patients that are on 4 medications, and they need them because they have very severe symptoms, and can't cope without them." He also said I may need more meds in the future if I have a bad episode.