You get visa after how many dayshey,
i don't think you made a blunder, there was no IMM5753 form in the documents otherwise aswell. review your application online and see what have you written, don't give any false information and if some thing is wrong write to the the canadian embassy through the IRCC web form explaining them what went wrong, or the update to your application. I am facing the same problem, I thought they would inform me to get a medical or something like that, but I guess I was wrong. So currently, I think you should go and get a medical done tomorrow itself, dont waste any time from the designated medical institute, which which you will find online on their site. the medical is valid for 1 year. upload the medical and any other information, if you want, throught the IRCC form, you will get an option to upload. cheers, i hope this helps.
here is the link if you need it.
http://www.cic.gc.ca/english/contacts/web-form.asp
As I did the same mistake and upload it on webform