The other night, I was having an episode of dysreflexia (turned out to because by stool, which was dealt with by my caregiver.) What was interesting was the sweating and chilled feeling, which did not affect my head or neck (those areas are affected during my bowel program.) It was a bad case of AD, with very high blood pressure before Nitro-Bid. I do have lesser episodes of AD that do only affect those areas.