I know it sounds simple, but you probably just need to exercise your shoulder a little and have a good stretch. If you sit at a computer or desk for long periods of time then your muscles can become very tense and you can even trap nerves. The muscles across your chest and the top of your back rarely get stretched enough.
I do yoga which i find really helps as the stretches and positions are designed to stretch and relax specific muscles and areas of the body so in my class i can ask my teacher if i want to concentrate on a particular area that is giving me pain and she will give me an exercise to help.
I also think massage is a good way to loosen your muscles, especially those hard to get to places.
Recently I’ve started doing some work for a Spa in leeds called Waterfall Spa. They sent me on a sampler day and one of the treatments I had was their ‘tension busting massage’. The therapist uses deep tissue massage to really work out the knots in your back and neck caused by tension, and aromatherapy oils, which help to relax your body and mind in general. I'll definitely be going back!
Just a couple of ideas for you there, hope they help.
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