aching muscle

This past couple of days I have had an ongoing pain in my bicep muscle. I used to continuously lift weights here at home with no problem. Althuogh this year I have weight training at school and I also lift weights with my basketball team for conditioning.. I have obviously stopped lifing at home, but the other day when I woke up I had this horrible feeling in my arm.. I cannot lift/hold heavy objects, extend it all the way out in front of me, raise it too far above my head or even bounce a basketball… It throbs at times as well. I was just wondering if maybe I strained or pulled my bicep muscle?? Thanks