I don't care how expensive your Avian Vet is, that is not masturbating at all, she is straining, and the kind of straining that they do when they are egg-bound. You do realize that Egg-Binding is 100% fatal without medical intervention, right? If you wait too long she won'g make it to the Avian Vet, she will die, and it's one of the most painful ways for a bird to die, they suffer greatly for a hours and then that's it. As a longtime breeder i can tell you that it's not pretty, I lost one female to Egg-Binding in 20 years, and I took her to the emergency animal hospital the minute I saw her doing exactly what your Amazon is doing in that video, and she still died.
Seriously, do not wait another minute. Do not call, just put her in the car and go to the Avian Vet. They'll do a quick, regular x-ray to confirm or rule-out that she's egg-bound, and if she's egg-bound then they usually have to intervene surgically, unless they think she has enough time that they can give her some oxytocin and a muscle relaxer to try to help her pass it, but usually there's no time for that.
Seriously, I hope I'm wrong, but that looks exactly like she's egg-bound, and if she is, she will die if you don't take her now. I'm actually trying to scare you because it's that serious.
BTW, was the dropping she passed normal, or was it large and messy? That's another sign that she's egg-bound...well, that and the fact that she's still straining after passing a dropping. Don't mess around with this, she's your bird, your responsibility, and if she is egg-bound you are going to be very sorry...Plus, if she is egg-bound, she is in a great deal of pain right now, and it's only going to get worse for her...she needs your help. Now.