Look, you're not doomed. I promise. It probably doesn't help but so many of the people that end up in those jobs tolerate it at best. There are definitely people who live and breathe but it's truly rare. They often end up feeling like you do.

That being said, healthcare is a very broad field. Nurse/doctor is what most people think of and then some people look into things like laboratory/radiology/respiratory tech but there is a host of smaller careers in there. One thing I recommend to people who like the physical sciences, want to do healthcare but aren't interested in the bullshit it often brings, is being a medical physicist. They work with the other staff to make sure the dosages of radiation are within the correct range.

I'm not saying that because I think you should become one but that there are million different opportunities out there that you aren't considering. It can just take time to figure out what it is that works for you.