Symptom Frequency Subjects All Female (< 30 y.o.) Dry eye No 209 75 Sometimes 89 29 Often 35 25 Giddiness / fainting No 214 69 Sometimes 102 50 Often 18 10 Muffled ear / tinnitus No 273 106 Sometimes 45 16 Often 16 7 Gastrointestinal distress / diarrhea No 152 61 Sometimes 151 57 Often 31 11 Palpitation / excessive perspiration No 224 94 Sometimes 99 31 Often 10 4

Table 3: Classification of subjects by autonomic imbalances.