I don't think they will ask for medical again as you already gave one time for study purpose. Did you uploaded the old medical reports? If yes you will get some updates regarding medical in GCkey.Thanks for the info. I am in Canada too but never gave medical in Canada, I gave 5 years ago in my home country for the Study permit. And I have already link my application to GC key following an email. I think they will ask me again for the Medical Exam.