I had a diagnosis of a mini stroke foisted upon me including a next day appoinrment at the neuro sciences dept of the Western General in Edinburgh.
I had a consultation with a professor in waiting, various scans and a prescription for some heavy duty drugs. Turned out some weeks later that I was slap bang in the middle of a mid-life crisis and a charming trainee psychologist cured me with a CD and a booklet.
I suppose what I'm suggesting is that they should seek a second (possibly third) opinion.