How do my hand from going numb?

I just started this job a few weeks ago and the hand movement is VERY repetitive. Now my hand just randomly goes numb like it's a sleep but I have to beat it agenst my side to wake it up. It hurts too. I've been told by other employees that it a common problem and the factory nurse told me to do some hand... show more I just started this job a few weeks ago and the hand movement is VERY repetitive. Now my hand just randomly goes numb like it's a sleep but I have to beat it agenst my side to wake it up. It hurts too. I've been told by other employees that it a common problem and the factory nurse told me to do some hand exercises but they don't seem to work. Any ideas on what's up?
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