Yes I have to, from what I understand it never really goes away, it just gets less severe as you work on it through therapy but never 100% gone. Just gets to the point where you can live your life and "function" again. I'm the same way about the slight noises, even the guy mowing his lawnmower next door makes me want to scream. If somebody makes noise while I'm trying to sleep it makes me want to hurt them. Even crickets chirping bothers me when I'm trying to sleep. Chronic PTSD never really goes away, since the trauma cannot be undone. 
Source:
Can PTSD be cured? – The Chart - CNN.com Blogs
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