Best way to track symptoms?

There is an app called bearable that is amazing and made just for it

I've been keeping a Google Docs log of symptoms for months, just listing symptoms with their dates to gauge the frequency of symptoms to show my internist. But I've also started tracking symptoms along with my daily resting heart rate with the Visible app. I'm not sure how useful it is yet, but it has the benefit of generating graphs over time, too.

I do empty notebook. For symptoms you can make a category for date, duration, location of pain, type of pain, and pain scale rating. For food, you can put date, time, what you ate, and symptoms