Tingly/numb pinky fingers, hands and arms, anyone?

Clearly this post has nothing to do with travel, but I have not much access to doctors or nurses to ask these questions, and webmd and google are only so helpful ... so ... has anyone had this problem? It's usually when I am asleep (the numbness or tinglyness wakes me up, so I have to shake my arm to wake it up, then roll over and go back to sleep), and sometimes when I am laying in a chair. It's usually my pinky fingers and the outside of my hands (the side where my pinky fingers are, not the thumb side) and sometimes travels up my arm. Of course this happens to everyone once in a while, but it's been happening to me a lot the past few weeks, and more often than not the past few days especially. And well, it's starting to annoy and somewhat worry me. So, doctors, nurses, friends of those out there, any suggestions?
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PS these are the only symptoms. There's no weakness, fevers, headaches, no issues with legs or anything else, just the arms/hands/little fingers.
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