I no longer sleep on my sides, only my back because my shoulders but me too much now. Too many years of wear and tear! Sorry to hear it woke you up, I know the feeling all too well...
I do hope it's getting stronger and less painful, I hate shoulder pain!
today seems to be a better day I slept well, even got 6 and a half hours sleep which is good for me
I try sleeping on my back but never suceed seems I am a habitual side sleeper