First of all, I don't think that a having a paranormal experience has anything to do with having a mental disorder. And the fact that this person has dreamed of you dying doesn't mean you will. It probably just means that you are an important person in her life and she is possibly having feelings of abandonment or wondering how she will cope in the event she loses your friendship. The fact that coincidentally she has had dreams where people passed away who actually did is probably just that: a coincidence. Try not to worry.
