I feel like the doctors have always respected me for the most part every now and then one has a little fit. I also know what I'm talking about when I talk to them. There are nurses I work with that the docs won't talk to and don't want taking care of their patients. I don't feel disrespected by docs and co-workers (but I'm sure some I work with do) More often I think the patients and families are difficult in my area (L&D) when they come in and think they are in labor and they aren't and they get sent home (but that's usually the teenagers who are now independent and know everything and their friends until they really are in labor then they change their tone)
It also depends lots on the general workings of the unit you are on and how everyone does or doesn't work together when you feel like your beat down.