Often prodromal symptoms

• Not always but when a prodromal period (= pre-syncope) is present, it involves:
  • Light-headedness
  • Feeling of being warm/cold
  • Nausea
  • Palpitations
  • Sweating
  • Weakness
  • Pallor
  • Visual blurring | pupil dilation
  • Diminution of hearing and/or occurrence of unusual sounds (wheezing)
    • nearly blacking out/nearly fainting