Sounds like my ex-upstairs neighbor! I used to remember hearing him go to the bathroom at 3 in the morning & toot his horn! LOL Something lovely to listen to while trying to get to sleep.
Though this maybe not be the best advice either (a) Go up & tell her that you can hear her. She might not be aware of it! Personally if she did it in the afternoon I wouldn't care that much… but if she were be-bopping along 10,11, 1 in the morning… that would get old after a while. Like I said… she might not even know! Better 2 ask 1st! Or (b)… tell your landlord. Depending on where you live depends on what you can do with the apartment.
I know in the old place that I was in I couldn't do any alteration without approval. That & if it's a newer place, the walls maybe paper thin… & even with extra drywall… it may not stop the sound. But the best advice that I can give (as much as you'll love it) if (a) or (b) don't work… is (c) get used to it. Till either you or she moves out… I doubt things are gonna change!