Ok I might being doing something wrong... every time (last 3 or 4 times in a row) I do shoulder shrugs... take 55 or 60 lbs dumbells and do 10x3 shrugs... I get this nagging tightness/ache between my shoulder blades. It might not be the shrugs... it could be another excercise or a combination...
any ideas?
any ideas?