I Have Arm Pain In My Left Arm From My

I have arm pain in my left arm from my elbow to my shoulder. I had thought for the time it was just something torn but after 3 or 4 months it is getting worse. The only way to describe the pain is like my arm is being ripped off the pain when I stretch or reach can take me to my knees.
I had not hurt myself that I'm aware of and as oh last night or early this morning I was so dizzy that it woke me.
It is very difficult to get in to a doctor in our small town so now I'm just thinking about going out of town but don't want to be extreme