<s>[INST] Hi, I am 28 years old with 3 kids and have worked for 12 years along with high extra activities. I was semi-diagnosed with tachycardia, but not sure how accurate it is. I have on and off chest pains whether or not I m eating or doing anything specific. My doctor told me to ignore the chest pains. And also I am having a tingling sensation in my shoukder that happens with movement. I did have a previous spinal contusion from a fall on skates and a neck injury from whip lash that resulted in a pinched nerve in my neck. I don t know what step I should take to make sure I am properly diagnosed. Please help me [/INST] Dear Mrs,Your shoulder pain definitely related to your nerve damage.I have some thoughts that your chest pain can come from your gastrointestinal tract, it can be either esophagitis, or stomach hernia.About tachycardia, it is not a diagnose, tachycardia can be caused by any condition, such as anxiety, chest pain and any disorder of any system.I think there is nothing serious. For your shoulder you may need some  rehabilitation or specific exercises.To find out the cause of chest pain, you can visit a gastroenterologist.And you shouldn't worry for the tachycardia.Hope I could help youWishing you good healthIn case of further questions don't hesitate to askRegards, </s>