What is the experience of fainting blood?

Do you know how to go for every physical examination?

I have a college classmate who is dizzy. After my senior year, I will find a job to do a professional physical examination and draw blood. We waited in line at the blood draw for a long time. She stood still when I arrived at her residence. She said she was afraid. She was afraid to see her blood bleed out.

Later, I directly covered her eyes with my own clothes and pressed her on the seat, then I drew blood, otherwise I don't know when I will wait.

People who are dizzy with blood are really miserable and pitiful.