I would say my flashbacks are primarily emotional - I am triggered back into a feeling of immense fear from childhood abuse, out of proportion to any actual situation of today.
Sometimes there are flashes of my mothers face, but I am not sure that these are flashbacks, just memories. As I understand it, a flashback has to take to back to the trauma.
i agree entirely with the others, find a good therapist, but make sure they are experienced in trauma work. Many wont be. Hopefully you can find someone. And remember, you are not alone in your experiences.