I don’t understand how they can get away with this

I was living in Fairbanks, Alaska. And got very sick. Ended up in hospital for 2 days. Was told to get my own doctor, which I did. He refused to let me return to work and put me on short term disability, which ended in November 2011. At that time he said he would not release me to return to work. As a result I was terminated from my job. Unum than sent me a LTD check in March of 2011, and the doctor would still not release me. So in May of 2011 Unum said that they would not be sending me anymore money, as Alaska Social Security said that I was denied Disability. But I moved to Washington and they sent me to two doctors, and I now receive SSID. I still think that Unum and the doctor cost me a lot. I don’t understand how they can get away with this. I’m bipolar, I have neurapthy in my feet. And still can’t breath. With all the meds that I’m on I have a hard time facing each day.