I don't understand how feeling like you're in the wrong body manifests as suffering. If I woke up as someone or something other than what I feel like I am, I would react positively or negatively on a case by case basis. Whether my self-image matched my body would not be at all relevant.
If you were transformed into a being with no sexual characteristics at all, say, a magical non-anthropomorphic helium balloon, would you expect your suffering to be abated or partially abated or unchanged?
If it's worth saying, but not worth its own post, even in Discussion, it goes here.