I had made a post that was above amandalouise's but then deleted it because of a trigger I had put in it.Thought I should explain that in case anyone wondered why I was mentioned(sorry amandalouise).
I had given an example of a type of severe trauma that could cause an alter to be created in adulthood by someone that's already DID.They don't just randomly form out of the blue.So I was concerned and confused by your post rise13eyond.