I'm sorry to hear about your horrible ER experience. I had a few of those myself. I've been refused IV fluids in the same hospital I was diagnosed in. Last time, in December, I went after a horrible episode, ER doctor insisted I was just fine, because my heart rate already dropped to 100. He didn't want to hear that I have many symptoms, not only heart rate and it's hard for me to bounce back without the help of IV saline. Finally after I begged him to call my cardiologist, he did and agreed to one liter. I've had even worse experience in my local hospital which I avoid now. Like Amy, I asked my dysautonomia doctor for a prescription for IV saline. I made arrangements with a local urgent care clinic. I can go there whenever I need an IV fix. No more additional stress. I can also show my prescription in ER if needed. Maybe you can do the same. Please talk to your doctor. Some doctors don't listen to patients but they usually listen to other doctors.