Sorry to be a killjoy but 'terms used in reports' are diagnoses! I think you will have an uphill struggle to get someone to state they were wrong based on a current examination. You may not be suffering from them now, but the CAA I suspect isnt really focused on that
You state this was three years ago. That is a blink of an eye in medical terms. You can be put back in touch with the psychiatrist or unit you were under at that time. Your GP is your friend and indeed should have a set of reports. The hospital notes by law must be disclosed to you unless they would cause you harm which does not seem to be the case. The doctor(s) can be traced.
good luck