It's almost impossible to impose boundaries on normal human caring , like it's something that can't happen in therapy and the T is doing something wrong if the client feels it. But my T's both say you have to be careful not to turn the client into your T. And they do have their own resources for their stuff , but we aren't there for them and it makes the relationship unique. I used to ask my T how he was ( like you do ) but then thought he would say he was OK whether he was or not so I stopped. So many of us have been caretakers for others , often at the expense of our own feelings and needs , so it's difficult I know.