Slight pains in arms and heart

I'm a 21 year old male, around 5'7 and around 250 pounds. I've been noticing a strange pain and tingling in my right arm and shoulder. Sometimes when I'm active, it's mainly gone. But when I'm sitting in a certain position (especially in front of the computer, which I do almost everyday), it comes back. Maybe it's carpal tunnel syndrome, stress, or even a sign of a heart attack (even though pain i...click here to continue

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