Chelsea Manning did not, to the best of my knowledge, try to correlate being trans to document leaks at all. In fact, her lawyers tried very hard to keep the trans angle out of the trial and succeeded mostly (except for some testimony brought in by the prosecution). The only aspects of Chelsea's medical condition that were relevant to the trial was that she had been identified as both unfit for access to classified documents by a military psychiatrist long before she was placed in that position, and that she was designated unfit for deployment overseas due to her medical condition. Chelsea's GID was known years ago for anyone who actually followed the story.
The question that bothers me is, if this is indeed true, and the official US Army medical records do indeed state that this is true, why is her former commander being allowed off the hook for placing her in contact with classified documents and deploying her overseas? There is at least one captain (Company Commander) and one lieutenant colonel (Battalion Commander) who should have been tried for creating and perpetuating this situation yet nobody aside from Chelsea has been tried or even charged.
Further, the war crimes documented in the released documents have not been prosecuted at all, nor have they been investigated except by the same units that committed the crimes. Isn't that a bit fishy too?
As far as Chelsea seeking proper medical care, it is already constitutionally decided law that if the government takes control of your life (such as imprisoning you) the government must provide medically necessary health care. This would include a heart transplant too. Just because someone is in prison doesn't mean they can be treated cruelly.
Yes, it's unfair, but thank the US healthcare mess for that. That's not Chelsea Manning's fault and we should not take out our frustration with a broken healthcare system on her.