I've had EMDR off and on for years. In the beginning, it started off slow for me, too. After a while I started noticing little things, like words or smells associated with the trauma after the EMDR session didn't bother me anymore, whereas before and under the right circumstances, I could be triggered into outright rage by those same words and smells.

Also, I know your therapist is well experienced, but who is setting the tempo and what form are you using? Some therapists use moving lights, moving two fingers, alternating sounds through headphones, and/or small vibrating devices held in the palms of your hands. For instance, I've done it with alternating sounds, but never lights or moving fingers. I prefer a very fast tempo (both therapists I have done this with have commented that I choose a faster tempo than their other patients - I don't know why I need the faster tempo). Lately, I've found using the headphones and the hand devices simultaneously and keeping my eyes closed helps the most. What's weird is that my eyes move back and forth anyway even though they are closed.

Please don't give up. EMDR has been a Godsend for me and many other people I know. Of course, it doesn't work for anyone - no treatment does, but things that used to send me into a tailspin I can now think about without, well, going into a tailspin. It creates more of an emotional sore spot where a gaping wound used to be.