I got a letter from Toronto public health to get the medicals done.
I completed and filled the form they sent in the letter and the clinic faxed TPH and they sent me another mail saying that everything is complete after 3 months and then I followed up with IRCC and they sent me email saying that medical survellience is now complete.
Your case is different with mine. I just received medical surveillance undertaking form on gckey but never receive any letter from local public health or MHB.