My hands have been tingly for the past hour and i don't know why. played a little volleyball yesterday. can that have something to do with it?

Tingling hands: If you have not been playing volleyball regularly, you may be using your hand to hit the ball which may be causing irritation to the median nerve by your wrist causing tingling in your fingers. It should resolve with rest. If not then seek medical attention.

Absolutely: Your symptoms are likely due to nerve compression either at the wrists or elsewhere. They should improve on their own. If no change on 72 hours, see your doctor.

Dehydration: Your sweat contains electrolytes that transmit electrical impulses responsible for many processes within your body, including nerve and muscle function. If you don't replace the lost electrolytes by drinking water or a sports drink, an imbalance results, and your body's ability to transmit muscle and nerve signals to and from your extremities may be impaired. Try rehydration with a sport's drink.

Could be possible: If you are not used to playing Volley Ball; then yes you can get this Symptoms. This is temporary. Possibly from impact from the Volley Ball hitting the front of the wrist. Apply Ice/ Moist heat and May take Antiinflammtory if you he pain and swelling also.