I imagine it's difficult for the nurses,and doctors to be highly sensitive people. To feel the patients pain suddenly flash into you,or something like their pain, has probably caused many med.school students to drop out. Nurses have probably chosen different jobs. They may get use to it.
I don't see how a HSP can work in a SPCA. I just love animals. If animals where being put to sleep,I'd have a heartache every day.
My family told me all of my life that I was super sensitive. We are not the only ones. I use to hide my sensitivity,and I still do from time,to time.
It's probably always good for the patient. The sensitive people are more concerned. BF