The sympathetic system is responsible for the 'flight or fight' response (increased heartbeat, sense of excitement, nervousness, anxiety). The parasympathetic system is responsible for the opposite-where youre in a calm and relaxed mode.he sympathetic system is responsible for the 'flight or fight' response (increased heartbeat, sense of excitement, nervousness, anxiety). The parasympathetic system is responsible for the opposite-where youre in a calm and relaxed mode.
1 Older adults and individuals with a weakened immune system are at greatest risk for developing shingles. 2  Shingles symptoms and signs include. 3  one-sided stabbing pain, 4  tingling, itching, burning, stinging sensation that precedes the appearance of the rash by a few days, 5  headache, 6  fever and chills, 7  nausea, 8  body aches,
The signs and symptoms of postherpetic neuralgia are generally limited to the area of your skin where the shingles outbreak first occurred â most commonly in a band around your trunk, usually on one side of your body. However postherpetic neuralgia is also common in people whose shingles occurred on the face. Signs and symptoms may include: Pain that lasts 3 months or longer after the shingles rash has healed. The associated pain has been described as burning, sharp and jabbing, or deep and aching. Sensitivity to light touch.