Doctor Who and the Telepathic Hospital

The Doctor and Donna exit a broken down TARDIS after the Doctor has been teaching her how to fly her ("You said to press that button there!" "No, I said to NOT press that button there!") and emerge in a hospital room. There lies a not so typical patient in whom the Doctor seems interested for a reason unknown to him. Who is this mysterious patient? What's been going on at that hospital?

Here's a bit of backstory about this. I was having a panic attack by myself one time and I was crying as softly as I could so no one could hear me. To calm myself down, I found myself imagining that the Doctor and Donna had materialized in the TARDIS a few feet from me. They spotted me crying and comforted me, but I didn't want to say anything to them so I created a character for myself so I didn't have to talk. This character became Ana and the location changed from a couch in a basement to the hospital because of my characters imaginary afflictions, which remained the same throughout my process of thinking up the character.