I got this too, at times, and don't even need pictures to have it triggered.
Just thoughts about 'life is unfair to cast this upon me, or us, while all the others seem perfectly okay with their gender'.
But I do try to look at it with a positive view. We have been given a very unique glimpse of both genders in our lives that very few can experience. I mean, how many can say they have been both male and female at a certain point in life?
For example, when cisguys say that menstruation is just women crying, we know better, because we actually experienced that. Not that it makes it any better, but it is a very unique view that makes us priviledged. We have gotten the full view on how society is gender based in a way, while the rest of the world seems oblivious to that and takes it for granted.
Still, it's only some comfort...if I had my way I would have been born a guy, that's for sure.
Edited for profanity.