I'm not sure if it's related to PTSD.
I can't stand tight, itchy clothes or elastic. I can recall smells of people or places in my mind and actually smell the scents. I am so sensitive to music that I once checked out of a hotel because they had on a soundtrack playing the same three songs over and over. I can tell when it's going to rain and how long it will last long before the storm rolls in. I get really depressed from humidity, really scared of the dry heat in Arizona, my joints ache and I get teeth-chattering, shaking convulsions from cold. I have environmental allergies and sneeze from the sun, like when I first walk out into the strong sunshine.