I have read up on it, she felt pain BECAUSE of the addiction. They werenât unaffected. The quelâlithien high elves, who were there to defend their homeland by the way and then as thanks for that were kicked out for not wanting to mana tap creatures, suffered from addiction pains.
But Iâll do the research for you.
Like blood elves, high elves can use arcane magic. Whether or not they are spellcasters, all high elves suffer acute pangs of withdrawal in the absence of the Sunwellâs energies. Some have realized the cause of their distress; others have not. A crucial difference between high elves and blood elves is that no high elves have decided to feed their hunger for arcane magic by draining that magic from alternative sources (during the time when the Sunwell was useless). Without the Sunwell, a high elf might still succumb to that addiction and become one of the blood elves.
On several occasions after the Sunwellâs defilement, Kaelâthas publicly asserted that his people would die unless they found a new source of magic. Technically the prince was mistaken. According to Azerothâs top priests and medics, the only high elves to perish due to magical withdrawal have been the very old, the very young, and elves who were already in poor health. Such a low rate of attrition might be considered an argument in favor of simply forgoing magic and suffering through the consequences. Indeed, a few high elves are said to have succeeded in taking this route through sheer willpower: they survived the process, however unpleasant. Apparently certain magical artifacts also ameliorate the symptoms of withdrawal and might, if sufficiently powerful, be able to suppress them altogether. This is not to say, however, that withdrawal from magic would leave the high elves unharmed. On the contrary, permanent mental or physical damage is possible.
The high elves in Allerian Stronghold used draenei vessels containing raw, magical energy to resist the lure of demonic magic. The high elves at QuelâLithien Lodge found an item of magical energy and succumbed to their addiction, becoming wretched
With the reigniting of the Sunwell, the pangs of their magic addiction are being eased and more high elves are no longer tempted to succumb to it.
But yeah, they totally were skipping around in the sunshine not feeling a thing from the addiction.