Suggestions
Average for individual symptom graphs
Mood and energy level both show average daily values on their graphs. Individual symptoms, however, appear to show the maximum daily value for that symptom. This reduces the fidelity of the data and makes it looks like days are the same when they’re really not.
If a symptom is none all day until the evening, then it’s severe (avg 0.75), that shouldn’t be shown as being the same as a day where that symptom is severe the whole day (avg 3). By either changing the graphs to show average symptom score instead, or at least giving it as an option, better insights could be gained from the data for individual symptoms.