I just noticed that if I sit at a table, with my elbows about 20 cm from my body, then my right shoulder feels like it is partially dislocating. It clunks forward and I can clunk it back.

Is this out of the ordinary? Can I do any exercises to prevent it? I'm tempted to go and see the university physio again with some questions.
Just making a few connections, I had clunking when exercising upper body, could this of led to the inflammation and hence the pain?

Just to confirm: I feel no clunking/partial dislocation in the left shoulder when I place it in the same position.