Hi cabraSurf, welcome to Psych Central and the PTSD forum. First, just want you to know that if you don't get a reply right away it just means other members have not visited the forum that day, never means you are purposely being ignored.
The answer to your question about getting the chills, YES, I get them myself and my trauma therapist had blankets handy for the patients that needed them as he noticed patients can get the chills in therapy sessions as well. Some people take hot showers and find that helps, hot baths too, having a small space heater you can sit next to helps too. I often sleep with a heating pad as I can often experience the chills at night while I am sleeping (even though one is not supposed to actually fall asleep with a heating pad, I do it anyway). The other thing I found helpful is if I am struggling with chills I sit on my bed and use a hair dryer and I blow the hot air on my legs and that is not only relaxing but the chills go away and I can sleep. Yes, I get the chills even in warm weather, it's not a normal "I am cold" kind of chills, it's more "trauma related".