Not necessarily to enter the symptoms. Alternatively, it may provide lists of symptoms and show what ailments they may be connected with.
A friend of mine, aged 53, recently died. He began to stutter ocassionally (something he had never previously done) and had no idea that this might be an indication of a brain tumor, as it in fact was. That is why I think that such a site as described above might be useful to know about.
This is a dangerous way to go. if you look at the symptom ' my head hurts' that could be anything from a hangover to hydrocephalus.This is why we have doctors.