How do I know If I have an 'RFID' chip inside me?

I have heard lately that there is an Identification chip which is implanted in anyone who has taking the swine flu jab. I wish there was a way to tell if I had one. I do believe that there are chips out there, which are being implanted into people, as there is enough evidence on the news which had conformed that the governments aim was to implant chips for safety, and security reasons. But really they just want to take away your freedom.