Shoulder injury day 4 - pain score 8.0

I only woke up three times last night, the usual stabbing pain which seems to be located immediately at the top of the humerous. Having fully woken up the whole shoulder is throbbing from the neck to half way down my arm. Lifting or rotating my arm outwards is still a no no and throbs after the sharp pain. I iced it three times and took all the ibu and paras I was allowed yesterday. The only reason the pain score is less is because if I lie really still it is almost bearable. I hope that the throbbing means it's trying to heal itself.