Caroline remembers screaming. It was like an electric shock which went from her neck to her toes. It was like being tasered in her most intimate area. She could not move because she was scared. She called out to the doctor to stop. “I can’t believe what happened to me was done in an NHS hospital,” Caroline, 56, says. “I feel that if they were wearing black balaclavas it would have suited what I experienced more. I felt like I was subjected to a very violent assault. That is the trauma that