4 trips in one month by ambulance to 3 different emergency rooms with a broken pelvis with no diagnosis from any of them. Is this Negligence?

I was unable to stand up and in excruciating pain. Even though I could not stand or walk still no diagnosis or tests. One trip (the 2nd to this hospital) an MRI was done of my lumbar region even though I repeated over and over to them the pain was in my groin area not my back. I also had been in Pain Management for the last 15 years for a back problem. It was my pain management doctor who ordered it after he was contacted by hospital. He was awareof the fact that my groin was bothering me for at least 10 months but didn't do anything either. Due to the fact I was in pain management, the hospitals assumed that I was there for drugs. One of the hospitals (50 miles away) went as so far to do absolutely nothing about it and gave me a voucher for a taxi and a voucher for a Greyhound bus when I could not walk on my own. The cab driver helped me at the hospital (staff only brought me to the door) and guard did at bus. I crawled on my hands and knees up my walk to my door at home. More factors