Listen to your shoulders. If a bodybuilder (or a guy that casually lifts) needs to listen to any body part, it is his shoulders. Take a FULL week off, icing your shoulder for minimum 20 minutes a day and taking ibuporofen. Trust me, do not enter a gym for a week. I have a history with shoulder injuries and have beat them every time.
Not only will u get better, but you will come back stronger. If you injured, you would be in a huge amount of pain and basically immobilized. If this is the case, then get to the hospital.