Please know that there are places you can go to put in complaints. It doesn't have to be now, but document everything, and keep a record of the sort of things that are said to you. Get names wherever possible. All public hospitals should have a charter of your rights and responsibilities , and theirs. This should be readily available to you. A version of it should be on their website. They should also have someone you can go to if you have concerns about your treatment or some aspect of your care - being called a sook, for instance. If you get no satifaction from them, each state has something called a Healthcare Complaints Commission, or something similar. Unfortunately this takes a degree of strength and resilience that you may not feel that you have at present. As I said earlier, do it when you feel ready.
No one should be told they have no pain threshold, they can't feel your pain, they shouldn't judge it!!
I'm embarrassed to call myself a nurse at the moment, if that's the way members of my profession have treated you.
Take care