No, don't rely on EMDR to help you. There's been actual research that shows that EMDR can be more harmful than helpful to people who are trying to heal from past traumas.
Is your therapist board certified? She does not sound like a good therapist at all. Of course you have to focus on the past if you want to get rid of the past trauma.
Don't dwell on the past. But if your trauma is still giving you physical triggers, you haven't fully healed from it. Only thorough cognitive behavioral or dialectical behavioral therapy or PTSD focused therapy will help. But EMDR? Stay away from that.