Hi jo,
I've used EMDR in the past a couple of times but it was for things I remembered... i don't know if i like the idea of forcing repressed memories to the surface. Or if EMDR is even the right way to do it. They tend to cause enough problems when they come through without forcing them. But as far as EMDR goes it seemed to help with the intensity of the feelings and the vividness of the memory. But it wasn't something I particularly liked and haven't tried again. But most people seem to have great success with it. The best advice i can give is to do what you're doing - read up on it and see if it's something you think will work for you. And talk to your therapist about what you are / are not prepared to do.
LTF