Have you thought of writing down the instructions you receive, the time and date you got them, and who gave them to you, and then reading them back for them to acknowledge that you've got them right? If you keep a diary of all your contacts and conversations with the clinic you will have some ammunition if things get really out of hand.
If you've already lost 7 lbs from being ill, you don't need green bags. You may even want to skip. Taking off more water may not make you feel better. I once skipped for this very reason. I had spent all day in the bathroom and still had to go frequently when it was time to hook up. Well that would not have worked out. So I skipped. I did my weights and blood pressures like usual just had no UF to record. My nurse supported me.It's horrible your center won't help you. I wish I knew a good solution. Any chance the social worker or center manager or somebody would be on your side and help you work out a solution? Sounds awful.