Do you believe in Spiritism?
The more I examine the world and its stories, the more the word "believe" becomes a meaningless blur of pixels on the page. There are a great many interesting narratives that can be useful as cognitive tools for different purposes in different circumstances but it rarely matters whether or not one bleevzin them.
For what it's worth, I find the claims that bleef in Spiritism is justified by observed phenomena or "scientific" evidence to be insufficient to be of much use. Skepticism holds that one should withhold bleef in such cases. Fine with me.
I consider the narratives of reincarnation through the lens of this question: what's the difference between me dying and being reincarnated as another person with different circumstances, language, education, cultural narratives, personality, and memories; and me dying and then somebody else being born? There is none, in either my own or that person's life experiences. Unless a case of "past life memory" occurs which seems more than anything else to be a flaw in the concept rather than a confirmation of it; or unless as is sometimes claimed there's such a massive amount of individualized karmic record keeping or offline life-experience-memory storage going on in some invisible world behind the scenes that the systems and processes by which this happens must dwarf the living world itself, in which case what's the point? Particularly, if memories can be withheld and restored by some cosmic process or divine agents, why not just give every spirit all the memories and dispense with the living-through-multiple-lifetimes business?
That said, it certainly seems that there's some aspect of my conscious experience that's independent of all my memories, circumstances, language, and so forth. Some phenomenon that, with all those individual details stripped away, might plausibly be identical in everyone. (I have a twin brother born with severe cognitive deficits and my whole life has been a running lesson in how similar we are despite that.) If you want to call that the spark of self-awareness or the spirit or the spoul, I mean soul, go ahead, but if it's identical in everyone then why distinguish between lineages of worldly experience? Who is whose reincarnation? Maybe everyone is everyone's reincarnation, and you're already reincarnated in everyone else in the world. (In the business of shuffling souls around, who says linear time must prevail?) Maybe the Eastern mystical narrative of individual identity being an illusion is worth consideration.
Please excuse my highly insightful rambling. It's not really on topic for discussion of transsexuality, but if your intent was to bring up transsexuality as possible evidence for reincarnation, that's my take on the whole subject.