So I just had my Second class ever in WC this last Monday. During class we did Chain punches on the Wall Bags. Now it is Wednesday and it still feels like my Shoulders are falling out of their sockets, I can't lift my arms higher then my mid section with out horrible pain. I can't even get restful sleep since the wall bag drills. I am the only newby in the entire class everyone else has been with Sifu from 2 - 5 years. So I was asked to try and keep up with them. What should I do? Please can someone give me some pointers, I have my Third class starting up tonight and I don't know if I can make it through.