I am not the most knowledgable at this but I will attempt to help start with something. It could very well be some sort of schizophrenia or any classic neurosis or psychosis in a worst case. However her third eye could be overacted and she could be feeding off of negative energy and seeing it in the wrong way. Along with the third eye being opened she could be going into another astral plane in and out at random. As for what plane she is going into and why it is always bad I don't know enough yet to answer. How long exactly has this been going on and has she had any treatments. Also does she go to any other type of realities that are better? Also hopefully someone else will take over from where I left off.
Robert
Robert