I have visited this site on numerous occasions and each time I did, I left feeling thoroughly educated on the symptoms I was having. I didn't use the health site to replace my doctor, this site actually frowns on doing that.
What I would do is plug (key) my symptoms into whatever diagram the site had up, on the symptom page, of the human body made available at the time and it would present to me the closest match to my symptoms. I can't even remember the symptom I plugged in and the diagram never got it correct because it has been correct so many other times that I've used the app. It may have been for Charlie Horses I suffered from all of my young adult life up until I found that answer some place else online.
Think of your visit to the site as a way to gain information to write down and ask your doctor questions from it.