McB is right. Goodness knows, all kinds of problems can cause neck, shoulder and back pain and the number one reason, believe it or not; as I am told by my doctor, is poor posture. That is in the absence of any structual problems in those areas, like degenerative changes caused by arthritis, disks problems, overuse of those muscles or even muscle tension.
Being a woman, I suggest a warm, soothing bubble bath, with some candles around the tub and then possibly have your mate give you a gentle massage to release the tension in those muscles to help them relax. I've done that and it does wonders for the neck and shoulders, not to mention a general feeling of overall relaxatin.
Heather
that is only a small part of it. But, this sort of pain is not necessarily indicative of MS.