I recognized the feelings, mostly mine come from depression from being bipolar, but your PTSD could be playing a big part in it. I hope it gets better soon. I'm glad you are learning technics to help you get through it. They do help sometimes.
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Bipolar I, Depression, GAD Meds: Zoloft, Zyprexa, Ritalin
"Each morning we are born again. What we do today is what matters most." -Buddha