Those descriptions don't take wings into consideration. Level 6 involves feeling exempt, lack of social and professional skills, and constant self-questioning. That's the high side of 6. Most people don't know that each of the levels have 3 sub-levels.
I have a similar relationship with emotions. I've learned to pay attention to them more and not just explode in a childish fit of righteous indignation (maybe you don't do that), but if I'm not in touch with my emotions a lot of the time I'll just be aware of the top layer, or I'll just ignore it and hope it goes away. There are many layers to my emotions I have to really look inside and analyze to see. Sometimes it does just go away. I too return to normal quickly if I can distract myself, and get my endorphins going with a piece of chocolate or music or something. For me the first clue I am feeling negative is a physiological feeling in my gut (solar plexus chakra actually) of tightness like a big knot, or hotness in my chest. Or if I am feeling a sad type of emotion feeling hollow in my chest. If I'm stressed my back starts hurting and that's my first clue.
I'm the belligerent type of inferior Fe, so people are usually aware of it if I'm angry, and I do the hypersensitivity in relationships thing- but I could see you channeling all of your feeling into a few areas like the animal rights issue. It seems to me you are Ti dominant and your feeling only comes into play when you are in a conflict situation, and otherwise you repress it.
I too felt like a stalker was writing about me when I read this profile about INTP, and it just seems like it wouldn't be that accurate if it isn't my type. Some people beg to differ, but putting that out there. It seems to me that something that makes me feel unoriginal, when I've felt weird all my life, and explaining every aspect of my weirdness, has to be describing me.
I don't know, because I've only read about this system. What happens?
I'll look for things that sound Fe specifically:
Level 6: "Because they feel different from others, they feel special and exempt from living as everyone else does, free from any obligation to follow the ordinary conventions of social life."
Level 7: They "have fallen behind others in almost every way -- personally, socially, and professionally -- and they feel acutely ashamed."
Level 8: "They are convinced that they are outcasts in life, sacrificial victims, endlessly suffering for what their parents have done to them and what they have done to themselves. They have contributed nothing, and people would be better off without them."
Level 9: "When they are in despair, having rehearsed suicide so often in their imaginations, they may act without any consideration or warning to others."
That last one is as close to an Fe statement as I can find.
"I absorb energy like a sponge everywhere I go. It allows me to see the world and my purpose in it." Zak Bagans, Ghost Adventures (INFJ)