Do you have a T helping you? It seems like you and your system might benefit from developing lots of skills to ground in the present day reality. Is there a part inside that can help with some of those strategies to help you all get fully present in the here and now? Uncontrolled flashbacks are a little bit like uncontrolled diabetes or uncontrolled asthma. With the right treatment approach you have a much better chance at keeping everything stable and under control. No wonder you feel so awful with flashbacks coming one after the other with no break.
Who inside can help?