bElieVe It Or nOt

yesterday, I went to clinic.. something that surprising had been informed by the doctor to me.. huh... I confused wheather want to believe it or not what has been said by the doctor. Should I believe?? I dont know.. or should I go to another clinic or hospital to confirm it.. Anyway, if what has been told by the doctor to me is true, I accept as it is.. May I strong Allah.