I don't think its healthy to indulge this sort of behaviour - after all it isn't our place to agree or encourage people who think they have this or that when we're not even doctors ourselves. I would state rather plainly that she either needs to find a new doctor or find some sort of chronic pain support group as an outlet for these feelings. Explain that you're worried about her health but that she has to be responsible for getting things resolved. She is after all a grown woman. As for the psychotropic drugs - you don't have to be mentally ill to experience mental illness and it doesn't necessarily mean she buys into the whole stigma surrounding the subject, she could just be rather upset that this is simply another thing added to the list which she needs to take care of. If she isn't open to changing the subject even if you refuse to talk about it i would, if possible, make less contact. At least if then she enquires why you don't meet up as much it brings the whole matter to a head and you may finally be able to get through to her. Sorry if i haven't been very helpful. All the best.