Hi looking4answers,
Have you discussed the possibility you might be suffering with PTSD (Post Traumatic Stress Disorder) with your doctor? Some of the words you used made me wonder.
A couple of giveaway signs are hyper-vigilence and an exaggerated startle response. Also a host of other symptoms - it is fundamentally an anxiety disorder. I'm a PSD-er (sigh) and well documented throughout the internet.
Any anxiety disorder is unpleasant and I'm sorry this is troubling you (and anyone else)
Antipodes