Pain and lump in Chest and Shoulder

[hummycherub]

In October I had what i thought was heartburn for several days. After a few I called my doctor for the chest pain and pain in my arm he advised me to go to the ER. They ran tests... chest xray, MRI, EKG, blood tests. Called it a muscle sprain although I didn't do anything to cause it. There was a obvious lump just about my breast, flat feeling but as big as a golf ball. They gave me a pain shot and sent me home with lortab.  I called my doctor about 2 months ago saying it was still there. He called it chondritis without even touching me. Suggested I go see a pain management doctor. I told him I would like to rule out everything. Because it was now in my arm and my arm was weak. I went to my rhuemy to see if it was a symptom of fibromyalgia. She felt the lumps I was talking about. She suggested I have xrays of my arm, chest and ribs. They all came back ok. Suggested I have a mammogram. I have an appt Monday to see the ob/gyn. I have alot of health problems so nothing will shock me anymore. The pain comes and goes even when I am just sitting here doing nothing but watching a movie. Other times it wakes me up from sleep. My shoulder seems tight and my arm is very weak. I would think that laying on it would cause pain but it doesnt. There is more pain when I lie on my other side.  Today the pain was in my neck/collarbone , chest and sharp pains in my arm.Can you tell me what you think is going on?