My duties in office is to sit in front of computer all the day for around 10 hours. For the last couple of months I am feeling pain in my left arm and sometimes in my left shoulder too. This is happened only when I use to work in office, otherwise, I don't feel this pain in my off-days. Sometimes, I feels vomiting, but vomit doesn't come. In office, I am using Adjustable Hydraulic Wheel Chair with Arm-Rests. I know that the symptoms of pain in left arm with shoulder may because of some heart disease (God Forbidden). Can you please suggest me some good medicine or exercise to do, though I do exercise daily by rotating my both arms in 360 Degrees.