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,
When shingles first begins, early signs and symptoms may consist of burning, itching, or stinging of the skin. The skin may feel sensitive, and it may even cause pain as well, which will occur days prior to the presence and development of the rash. Other symptoms of shingles include headache, fever and chills, nausea, body aches, and swollen lymph glands. Shingles rash may begin small and appear similar to that of blisters.