I am an INFP but recently have been testing as INTP. Probably 'cause my Ti has improved quite a bit. LOl.
My introvertedness is always high. N and P is about the same wheres F was the lowest. Either of these two applies to me.
INPF - Don Quixote of La Mancha - Like a more refined version of the "martyr," an INFP in this mood tends to turn his very identity into a metaphor for the truth he promotes.
IPNF - "monk" - Stasis and detachment tend to mark this mood. Often mistaken for an INTP.]