Still waiting for comments on my draft - what to do?
After 5 weeks, I think you can safely assume that she has forgotten about it. You can either accept that you will not hear back from her, or send a polite reminder.

Most people do not mind a friendly reminder about tasks that they have committed to but forgotten about. It is definitely not inappropriate. However, it is of course possible that she simply has no time after all, but then the right thing for her to do is to just tell you.