Quote
I don't think it was night terrors, i almost never had nightmares, maybe once a year at most. I sleep pretty ssoundly.
What you describe matches the symptoms of night terrors with precision
http://www.nightterrors.org/Quote
Night Terrors Symptoms: Sudden awakening from sleep, persistent fear or terror that occurs at night, screaming, sweating, confusion, rapid heart rate, inability to explain what happened, usually no recall of "bad dreams" or nightmares, may have a vague sense of frightening images. Many people see spiders, snakes, animals or people in the room, are unable to fully awake, difficult to comfort, with no memory of the event on awakening the next day.
As the page explains immediately after that, night terrors have
nothing to do with nightmares. There is an unfortunate resemblance between two English phrases which leads to confusion. However, each occurs during a different physiological condition during the night. They are radically dfferent phenomena.
And night terrors can simply cease, as yours apparently have. Which is good.
As to the tower collapse motif, towers have collapsed with loss of life in many times at many places. You might wish to Google "tower collapse" if you doubt how common a disaster this is.
Apart from that, the image of a collapsing tower is one of the cards of the Tarot. Collapse of physical support (with or without a tower) is a universal human primal fear. There is just nothing startling about screaming things generally concerning collapse and people dying.
I especially don't see any reason to connect your remarks during disordered sleep with the events of September 11, 2001.
The only thing I get from the story about the bangs is that you are open to a paranormal interpretation of all these experiences. If you want to post more about the ghosts you have seen, or how they have harassed you, then maybe the collective wisdom of the UM membership can get to the bottom of that, too.
In any case, if wearing your hair in a certain way solves the problem, then it sounds pretty much fixed.