What would you think if your supporter went to the hospital and then refused to tell you about their...
Well, for me, I know there are HIPPA laws in our country for a reason. NO ONE is allowed to know anyone else's medical information, diagnosis, etc. unless either that patient tells them about it or that patient has signed a paper saying they can be told about it. I stand by my decision to keep it to myself. I have my reasons and I also know my rights.
If my spouse were still alive, I am not sure of what decision I would have made in this particular case, although most of the time I did allow him into my Dr.'s visits with me when we were young. However, during his later years, when his health was fragile, I might not have let him know about this visit to the H. It might have adversely affected him. In fact, when I was in the mental hospital, and he was in the nursing home, I did NOT tell him about my mental health hospital visits. He did not need to worry about me. I may have mentioned it in passing, but not given him anything more than vague info, like, "I was in the H dear, but I am OK now and you don't need to worry about it." Or words to that affect.
So really, each individual medical issue is unique. For instance, my grandfather refused to let the Dr.s tell my grandmother that she had cancer and was terminally ill. He may have been being protective of her, thinking that if she knew, she would give up sooner or something. That was back in the 1960s, so things might be different now. He might not have been able to do that today. It would depend upon whether or not he would have been her Healthcare Representative or such, I guess.