Yeah that sucks tht you are unsure whether or not she knows breakmystride.

You said - "major trigger for me because she is always making judgmental remarks about how I eat even though she knows I've struggled with restriction in the past."

This is key in this entire post.

I really think there is one wise choice here.

You need to work this out -

Nobody can answer this question for you except for you yourself;

Were the comments about your eating habits made out of GENUINE CONCERN or were they made out of SPITE.

If made out of Spite. Stuff That! Ignore them.

If made out of Genuine Concern.

It's time to tell her.