After fall at the Australian Relays I've been experiencing discomfort in R shoulder for some weeks. Finally went to Dr and been referred for x-ray and ultrasound. He suspects US will find bursitis, which can be fixed with an injection.
April 2016: Had cortisone in December, worked ok for a while, time for another one soon.
31/5/16 Seems to have largely recovered, but still getting discomfort occasionally.