I usually don't have auditory memories, in fact most of my memories are like silent movies. Trying to recapture some of the WORDS in my experiences has been something that's been important for me.

My memories are usually visual (occasionally smell, or strong feelings, or all of the above). Most commonly, it feels to me snapshots of past events are moving in front of my face, sometimes slowly, sometimes more rapidly.

To me, there's a small difference between a memory and a thought. A memory is usually something that I'm trying to work out, there is more conscious deliberation in a memory. A thought is just fleeting, and what makes it intrusive is when I don't want to be thinking about (usually a memory) but it dogs me anyway-- when I'm doing the dishes, watering the garden, reading, etc. It's actually also a symptom of PTSD. A flashback is a memory that comes back and makes you feel like you're back in the trauma right then. Usually my flashbacks are visual followed by intense feelings, sometimes panic.