I gave my dog a piece of pork

last night after dinner I gave my one year and a half old chocolate lab a piece of pork when it was time for bed he was laying down and a bit later I thought he was playing but only to wake up and see his front to legs cramping he looked confused what could this be please help

your dog is cramping stop giving it to him and take him to the pet hospetl I spelled it wrong sorry and rub his legs and belle and back and scarch his or her back dp evertthing to help it oh I love dogs verry much