I think that's a good idea proposed by Mark. Keeping a daily log of activity, symptoms, mood, issues, etc. is a really good idea. In addition to being useful for you own purposes (e.g. identifying patterns or causative factors), good doctor's are appreciative of this and will, in my experience, interact with you more positively. Further, the records may prove helpful for dealing with external parties, independent medical experts, insurance, workers comp, etc.