hey sry to hear about the shoulder... if you could give a more specific area of pain that could help out.. front of shoulder? kinda where it looks like ur pec top of ur bicep connect and the front of ur deltoid lays on top. that area? Is it the back of your shoulder? is it a deep pain? a more broad idea of where it hurts can help.....
If the front of your shoulder hurts it is probably early stage of tendonitis.(aka inflammation of the tendon) probably your pectoral tendon because of benchpressing and this happens a lot to people who love to bench.. should also hurt a good deal while doing incline benchpress?(correct me if im wrong) makes your shoulder feel week...
My recommendations on this would be to
ice where it hurts. (20 min on 40 off) DO NOT APPLY HEAT. also stretching you need to get a lot of blood flowing to the tendon before you start doing strenuous activites to it.. do you stretch a lot? Dont go crazy with your weight for about a month.. just stay simple its gunna be boring probably but dont kill yourself.. Ice and stretch everyday it will help..
Hope this helps.. ill try to look back at this thread or you can pm me and i could send you some stretches and tips to help ya out.. Good luck