I know that hind site is 20-20, but you really should have went to the hospital for x-rays after your accident. I really have no doubt that the trouble you are having is directly related to the accident you had years ago. I am unfortunately, able to say this because I did the same thing. I had an accident several years ago to where I was knocked out for a short time. I awoke, said that I was feeling fine, and against my family's wishes did not go to the doctor. After some time I started having some of the exact problems you are describing. I also could not hold my hands above my head even long enough to put in my own pony tail. So started my search for what was going on with me. I went to SEVERAL doctors that gave me a diagnosis of everything from being "depressed"...to having "systemic Lupus". Finally, after years of pain, numbness and burning, I quit going and figured that this is just how I was going to be. I knew in my heart that all of those doctors were wrong. I moved back to my home town, went back to my same ole doctor that I had went to for years (thinking that he was not a very good doctor for "Important" stuff), in passing told him about my problems, and his eyes got big, had me describe the problems again and sent me straight out for an MRI. He had the results sent back to him quickly and within a few days I was sitting in the office of a neurologist. I had a loop of spinal cord that was outside the c-5 and c-6 vertebrae in my neck. I was immediately scheduled for surgery...wound up with spinal cord damage, degeneration of my spine, permanent numbness and tingling in my hands, burning in my shoulder, and pain in my back. Over the years I have been to other neurologists to see if there is any surgery that can take away the pain that I go through every day. I have had other MRI's, Mylegram's, and other testing, for them to say that the damage is now permanent because I waited to long to go to the doctor. I am now on a fentanyl patch, hydrocodone and carisoprodol every day, and my life revolves around doctors appointments and pharmacy's closing times. And I have 9 children. 6 of which are still at home. Dear, I hate to see you go through this because I have been there, and am there now. I am making this a free post, keep your five dollars, and do what ever you can do to get to a doctor that is going to listen to you. I don't know anything about Michigan, but I do know that there will be someone out there that will see you and help you to get the care you need. You are going to have to get on the phone or on the internet, and see what is available to your area. If you have to go out of town, do that. You want to go to a bigger hospital where they have neurology patients on a daily basis.
If there is anything I can do, please let me know as I will be glad to help if I can.
Good Luck to you, You are in my prayers.