Hey hang on there!!.. Recently I too had oral medical exam which tests our knowledge.. I really didn't said previous year's I have stutter... But final year is tough so I let them know I have stutter (orelse they would feel I don't the answer).. And you know what happened.. Alot of them said take your own time even though I stuttered.. some even asked easy questions...one even didn't ask me much But it didn't bothered me much when they didn't questioned me much because I know what extent of knowledge I have.. I can show it in my practice later.. Its just an exam.. It should pass away.. Don't think much!!..you did your best!!