i am a little concern to go to the doctor whom issue my medical certicate what about if there is something and revoque my certicate just the fact that there is his signature on it.
Go and see any medical practioner then. However the medical certificate is a secondary consideration. Even if it is temporarily revoked, it can always be reinstated later. The important, indeed the primary consideration is your health. If you are not fit to fly, then so be it. A medical certificate is really only a snapshot of your assesed health at the time it was issued. I would suggest that a significant percentage of all licensed pilots do have their medical certificates withdrawn at some time in the relevant portion of their lives.
Get the problem seen to and resolved or treated. In point of fact the medical is effectively invalid if you fly whilst knowing you have a medical condition that would otherwise prevent you from holding the certificate.
Hope it gets sorted out for you soon.