What are the stretch excercises that can relief my pain in shoulders&back neck due to fibromyalgia. I do not have any physical dr. Nearby. Explain please?

Let guide you. You think it is fibromyalgia, may be not? How do you know, get checked when you can. Do some stretching exercises program for the neck and upper back. See below.
Yoga. Hard to describe various positions in this format, but simply lying on your back without a pillow on carpeted floor for 4 hours with knees bent will relieve many shoulder and back pains. Learning yoga - especially breathing techniques- helps alot.