I had appendicitis and I was sent home three times, after being sent there by my doctor. The ER was busy looking at illegals with the sniffles, so they didn't actually have time to confirm that I had appendicitis and instead decided that I must just have cramps. They let me wait, curled up in agony on the floor, for six hours, though. While they took illegals with the sniffles. I had a long time to watch their supposedly "sick" kids playing around and eating Chicken McNuggets. Emergency-room-sick people do not generally eat, laugh, and play. I know this since I hadn't eaten for about a week. The room was literally full of people who were not having emergencies, and while I didn't inquire as to legal status, most of them were speaking in Spanish (which I also speak).
Luckily, on the fourth time (now days after the doctor first said it was really serious), I was about ready to die and my appendix was leaking, so my husband called an ambulance, and they had to take a closer look and perform some emergency surgery.
If you went the ER and were sent home four times you got seen four times. You may have had incompetent doctors but you did get seen which is the opposite of what the complaint was. How about you have your personal doctor get you admitted to the hospital. BTW, where I live the doctors call ahead and have a bed set aside for you. It pays to have a doctor actually affilated with the hospital.