With regard to how some of my symptoms manifest, one that affects me the most, especially when I'm out in public, is auditory stimulation. I am incredibly sensitive to sounds. I can hear little things in the background that will distract me. I'll end up dissociated and taken to another place. It can be incredibly distracting and frustrating to deal with.
With regard to some of the physical symptoms, I can sometimes go days without eating. Even though I'm hungry, if I'm activated, my symptoms are really bad. My stomach and digestive system really can't even tolerate food going in. I do end up physically ill.
Similar to what Paula was saying, there are pain issues. I have pain that there really is no explanation for. I've gone to the doctor for pain in places where I don't have injuries. I experience exhaustion and physical symptoms for which there really is no explanation.