Please choose the correct ending to complete the given sentence: Health: [header] How to faint safely [title] Watch for dizziness. [step] You might feel a slight, or severe, dizzy spell immediately before you faint. This is a strong warning sign that your circulation system is not functioning normally.

Ending1: As soon as you start to feel dizzy at all, stop what you are doing and try to get lower to the ground via sitting or lying down. [title] Watch for changes in vision and hearing. Ending2: Keep monitoring your blood circulation until you see it steadily drop. Dizzy spells can go from seizures to unconsciousness. Ending3: Fainting in class or out of school is definitely not normal. [title] Check your school's emergency numbers. Ending4: Vertigo causes fatigue in many people, and it is essential to move carefully and safely. This is especially important to do when pregnant or nursing as dizziness can lead to the child becoming sick after a few months and cuts off the umbilical cord, which might be threatening the baby's overall health.

Answer format: ending1/ending2/ending3/ending4