In response to the way you defined extroverted and introverted functions, I'll define the E functions from my POV:I never meant to use definitions, just bring out characteristics.
-Fe can make you self-conscious of what other people think.That self-consciousness tends to motivate the person toward establishing friendships which ultimately does more to fuel happiness than to take away.
-Ne can make it hard to sit down and really write a solid, cohesive paper, because you have so many ideas bouncing around in your head. They can overwhelm you and confuse you.It can be upsetting to waste that time, but the time wasting is almost always a very enjoyable experience.
-Te can lead to anger when not everything fits into a neat, defined category. Te can lead to annoyance when things aren't congruent.Te can make a person angry to be certain. But the result is generall to keep trying harder to accomplish a goal and the end satisfaction usually will more than offset the frustration.
-Se can make you hyper-aware of danger in your environment, leading to anxiety. Se may also make you binge eat or overindulge in physical pleasures. Hyper-awareness of danger is more of an aspect of Si or possibly Ni. Se does cause addictive behavior, and as I've said above developing an introverted function can help "anchor" a person and break the cycle. Se still gives short term pleasure but at the expense of long term consequences.
I don't think all the functions are defined well enough, especially the introverted ones, but I think the introverted functions can bring happiness too. Introverted feeling, for example, is capable of placing a pair of rose-colored glasses over your eyes. Those glasses can make you see the world in the most moving and meaningful ways.
The rosy glasses is aspect of NFP's, and not necessarily of SFP's. Heck as an ENTP I have a fairly rosy outlook. The rosy outlook comes from Ne, but is magnified through Fi.