To simplify it, i too had my Autism diagnosis used against me by some to prove I wasn't trans. Years later I have seen that my autism and being transgender neither promotes one and another nor does it cancel one and the other out. I simply am a woman with some very mild autism , or so says the drs xD. I have at times difficulty understand people, yet am very smart in many other ways. I may be socially quirky but I am most importantly me, just like how you are you! Don't do a scare, you are fine!!
PS on a personal front, after living full time as a woman for like ever now, I can say that even if my womanhood was brought on due to autism , which it isn't and has been proven it isn't,I wouldn't care. Give me more of both then, inlove my life now.