I am very nauseated, have a pain between my shoulder blades, pain across my shoulders, fatigue and loss of appetite. I have had nausea most mornings this past week. In the past week, I have had a feeling of pain and then soreness from my shoulders to my elbows. I am a 54 yr. old female. I have an arrhythmia, but it is not life-threatening. Is this something I should be concerned about?