I am trying to understand Fi better... so when you say, "As a Fi-dom, I relate to others by drawing on my own experiences and "recreating" their feelings inside me", does it mean you can't understand or recreate that feeling if you have not experienced a similar situation before? And when you do, do you inject your personal, subjective feelings into it?The former is, indeed, Fi in my own experience. Fe doesn't need to internally validate the feelings of others and relates to others pain and joy without drawing from internal experiences. As a Fi-dom, I relate to others by drawing on my own experiences and "recreating" their feelings inside me, so Fi is more tempered when it relates others I think. Both Fe and Fi possess empathy but it is sourced differently.
To answer your last question, my INFJ husband and an ENFJ I know do act as though they feel the pain of others, as close as one can without being the actual person they are relating to.
Also, when you say INFJ/ENFJ act as though they feel the pain of others, are you saying they're pretending? I'm trying to grapple with this because when I see someone in pain, I put myself in their shoes and imagine how I would feel if I were them, and that's how I am able to empathise. Is this "pretending" (act as though) in your opinion? Note that I'm associating your "act as though" to "pretending". If this isn't what you mean, pls correct me.