It was similar to “the man who mistook his wife for a hat” but it wasn’t that. Not as famous and different author. It would have been maybe 2004ish that I read it.
A collection of chapters about different psychological issues - can’t remember much but I think it may have had the condition where you think you should have a limb amputated.
I think it’s also where I learned that nymphomania refers to females and that there’s a male term (satyriasis?) so there must have been a chapter on that.
I also associate it with hamlet for some reason - there may have been a chapter that mentioned something to do with the play? But I don’t know the play so I can’t figure it out.
The cover was quite dark and had a man’s face from an old painting, I think.