Your body goes through changes because of the chemicals released by your brain during a "fight or flight" situation. A cocktail of adrenaline for energy, cortisol for pain relief, is released into your body. You experience tunnel vision, rapid heart rate and respiration, and loss of fine motor skills, as you go into survival mode. Blood and nutrients are diverted from other areas to support this situation. You may be particularly sensitive to these changes.

Try some deep breathing and meditation for relaxing. You can improve this state by adapting your body to deal with stress in a more relaxed way over time.