Sorry to hear about your shoulder pain loopy, I ha a broken shoulder a couple of year ago but it wasn't diagnosed by my GP and I lived with it for 6 weeks. It wasn't til I went back and dropped into conversation I had BUPA they suddenly rolled out the red carpet. I had X-rays, MRIs the lot but the GP was happy to send me away in pain. So keep pushing until you are satisfied it's better, don't let them fob you off.
And well done for doing so well on the diet hun, you're doing great xx