I have had for the past 4 years ongoing muscle pains on only the right side of my body. The
right side of my neck gets tense, my head hurts on the
right, my
right arm, my
right upper back, lower back, my right buttocks, my right leg and all the way to my right Achilles tendon. Even my chest starts to feel tense on the right side. I can only describe it as a sore muscle, like after a good workout. But it's always there.