If you must go to the ER (and it is appropriate at times) take all of your surgical and radiology records....discs and reports. Keep your focus on your need for some answers, an immediate referral and your greatly diminished level of function. The ER doc is far more likely to take you seriously and throw in something to give you temporary relief.

I DO understand the problems the ERs have with drug seekers. On the other hand, it seems like you must have a gunshot wound to the chest to get something for pain. Best wishes.