I'm doubt very much that trans people are dealing with eating disorders due to being trans, but rather they are likely the result of dysphoria, depression and anxiety that are part of being trans.
I can say that I personally have had eating problems as well, specifically binge-eating disorder (BED). It's absolutely frustrating, and ridiculously difficult to control, and it's made body issues worse, but I thankfully began taking vyvanse for my ADHD, and it happens to treat BED as well, and that made a world difference for me in controlling this issue.