great subject for a documentary and one I am thinking of having a go at if i can get my shit together and stop making daft stuff.

Sounds to me like you need to do some more research and get an 'angle' so you can construct a narrative and argument.

For a shortish project your interviews often are a large part of your research so perhaps in the absence of a very clear plan you can let the interview be a bit more casual. In my expirience 'experts' just need the touch papaer lit and you will get heaps of good info - tape is cheap.

Dont rely too much on the 'experts' - what will make this engaging and challenging is first hand experiential accounts from sufferers.

I know its been done to death but I am sure there is mileage in contrasting sufferers expiriences and aspirations as regards treatement and recovery and how thier aspirations are met or more likely not met by the health care system. I am thinking of that angle, or perhaps a treatment on how people manage thier own challenges using thier own coping strategies and stuff. Non sufferers odd attitudes is another interesting perspective too.

As a long time sufferer I would be very interested to see how it shapes up so be sure to post the project as it matures.