If you are particularly sensitive to light touch, and the shoulder feels cold or the coloring is off, they may need to consider the possibility of CRPS (Chronic Regional Pain Syndrome). It’s rare, but the pain is excruciating and out of proportion to the injury. Hopefully this isn’t the issue, but CRPS following surgeries is one of the more common ways it gets started. I don’t want you to jump to this but it may be important to bring up this possibility to your doctor. They don’t tend to think about it because it is a rare complication, but it is imperative that it be diagnosed quickly and treated quickly in order to prevent the syndrome from worsening or becoming permanent. My husband has lived with CRPS since 1985. If this is a possibility, you will need an excellent pain specialist who knows what he’s doing. They can be hard to find.