It sounds like your teeth are going back to their original positions again. This is possible to happen in the case that you do not use your retainers according to the plan of your orthodontist. The deletion of the braces, and retainers are useful for keeping teeth in their new position. They are the ones responsible for the extraction of teeth which in turn migrate back. The first and the most important step to stop it would be to rank shifting to acutely wearing the retainer again. Be relaxed, talk to your orthodontist, and ask for instructions.