Sometimes when i sleep on my left arm i wake with a pain in my arm,lightheadedness,and dizzy spells.I've spent a night in the hospital had chest x-ray and a stress test which found nothing.I am a non-smoker pretty well fit person and i walk daily .Could there be something missing in my diet?This has been ongoing for about a year now and is not something i feel all the time. I sure could use some advice please respond.
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Male , Age: 41