I have several groups of symptoms, and it would be extremely useful to be able to see insights and effects on, say, the migraine group, without looking at each individual symptom or all symptoms at once. It makes it hard to tell what might be affecting a group of related symptoms (as opposed to overall health), and makes days look worse than they are. It would also be useful for bringing health history to medical appointments, when discussing a specific issue.

I too use symptom groups based on different diagnoses. It would be extremely helpful to see the graphs and insights for symptom groups rather than total symptoms as my groups are unrelated.