I am seeing a psychiatrist privately because the NHS waiting list was so long.
I may need to change my anti depressant which I was really trying to avoid because I get such awful start up effects.
Anyway the psychiatrist has suggested getting one of these tests done to see which AD might suit me best.
It's very expensive (about £800) but also I've also read really mixed reviews which suggest that the results are not particularly reliable (the tests are used much more regularly in US.)