Giving her space means letting her have these 3 weeks without you asking her to read or listen about adhd.
I know, you’re bursting at the seams to have her hear you on this. Do you want her to be able to start trusting you again? Then honor her request. If you can’t do this thing, putting aside your need to tell her so that you can honor her need to recover a little, then she’s going to see this as more of you not following through, not being reliable.
Don’t say “but.” This is what it means to give her space. Don’t chase her. Don’t repeat the same request again and again. Let her be.