how would your ed show? Your ed is not your weight. If someone is underweight that could be for other reasons. Sure people could assume it's because of AN instead of some other health issue.
If you don't show any ed behavior (body checking, purging, etc) or talk about your ed or do any weird typical red flag AN stuff like go on rants about how fucked up it is that people consider granola to be health food or that anyone above bmi 18 is grossly overweight, etc, you should be fine.
I think there could be a place for content that talks about EDs and j-fashion/lolita in the same context, but obviously not in a pro-ED way. There was a lolita who talked about becoming healthier after going to therapy for emotional eating, although I don't remember her name. That was pretty well received but be careful about posting personal stuff online, even if you choose to talk about it in a recovery focused way it can follow you. Once you put it online it's no longer in your hands.