But Chick, with all this emphasis on individuality, you're totally living into your Fi
Not fitting any of the profiles exactly is normal, but doesn't mean you don't fit a type, even if there's an X in there. The profiles are 16 'examples' of what a person of each type would be like if their score on each letter is pretty high. You're not supposed to type yourself by the profiles but by deep understanding of the individual functions and your own behaviour.
One ENTP can be very different to another ENTP and they can be different from the profiles. If your score on each letter is under 20% but still enough for it to be a preference, you'd be much less like the profile than someone whose scores are all over 80%. But you'd still be an ENTP and still not relate to the other profiles.
Anyway Mondo, your hyperactivity thing (a bit) says ENTP to me. It's Ne, it can continue indefinitely as long as it has something to interact with. If you were Ti dominant, you'd soon get tired and want to withdraw from company/external stimulation. If it actually wakes you up and keeps you awake, that points to Ne or Se IMO.