I had no idea this was a part of the ptsd but makes so much sense now! Thanks for posting. Since starting to have flashbacks and more apparent signs of ptsd I've been incredibly drenched waking up and thinking that I must be getting the flu or something. Reading this actually made me link an earlier episode of night sweats closer to the time of trauma.Every day is like a journey to uncover the facts of my own life. Does anyone else research obsessively to try to gain a better understanding?