Please be reassured that there are sensory nerves that are unavoidably cut, irritated, and stretched by the surgical process of creating a pocket for the implants, as well as the resultant tissue de-stretch, swelling decrease, and gradual return to normal as healing occurs. Burning, itching, tingling, and sharp "static electric"-like sensations are all described by patients.
Perhaps your friends (who presumably had the same operation) simply felt "numb" after their operation. Your responses are as individual as you are!
Desensitizing massage is a good idea, but don't worry, this sensation is not permanent! It may actually get worse before it gets better (sorry), but it WILL gradually go away over several months and return to normal (a "new" normal, but one you will happily be able to live with).
One other comment: I know it is normal to share concerns and worries with your closest friends, especially if they too have undergone this operation. Remember, however, to only accept advice from the trained plastic surgeon who you trusted to perform your surgery. Your friends have only one experience (their own); as plastic surgeons, we have the training and experience with many patients that should make our advice the best that is available. We may not always be right, and or course we haven't received our perfection badges yet (my mother says mine is coming, and she tells me she never lies), but we really do have your best interests at heart, and have the training and experience to help you with the best information possible. Friends are for moral support; go easy on accepting "advice." You too will be that friend to someone else someday, so be supportive, and direct YOUR friends gently back to their surgeon. If their advice seems "off" or in error, a second opinion is always a smart recommendation.
You need not fear about this! Honest!