I don't think you have a reason to worry - I say this because Buffalo processed my file, too, and they weren't able to find the medical results for one of my dependents, even though I had included proof with my application that his medical had been done. Within a week of receiving my AOR, I received another letter asking that I have him medically examined. Like you, I wasn't able to get a response from them - so I
faxed the Regional Medical Centre in Ottawa with my son's information and asked whether they had his results on file. Within a day they confirmed that they did have his results and that they were forwarding them to Buffalo immediately. So you could probably do the same - send a fax to the RMC asking them to confirm that Buffalo has requested your results . . . they're really good about responding.