During my last visit to the gym my right shoulder started aching while I was bench pressing. I gave myself a break for 3 days but a slight pain still persists. The location of the pain is where the biceps join the shoulder and it is most prominent when I raise my arms to the side. Also, the pain is focussed and at one point.
I hope this is not tendinitis or some rotator cuff injury. How can I be sure ?