Violet, take a deep breath....it is a good thing, but doesn't feel like it. Sounds like you are having a memory surface. It is good to remind yourself that you are safe in the present and that you are going to be ok...if you can. When I age regress in the memories, I can only remember to get my husband, he knows what to do. I am unable to think as an adult when it happens.
Do you have a T? Maybe give them a call...this is something they can help you get through adn process so you get the best healing from it.
Many safe hugs and do not forget to breath. We tend to breath very shallow breaths or hold our breath during these times. This causes increased muscle tension. Cry if you feel the need to. But look at what your seeing ( flashes) and focus on the feelings, it is the only way they really subside....when we see them, feel them and accept them as truth.