To those with almost expiring medicals:
- If your medical exam is about to expire (i.e. one or two months left), go ahead and ask for another medical exam *if you think your security check is about to finish. This is needed because they won't issue visa with 1 or 2 months left for medical. Heck, it might even be more, like 3-5 months. I am not sure what the exact number of months it is that they need the expiry to be valid for but they definitely won't issue visa when a month is left.
- I have not heard of anyone's medical expiry date get extended so that might be a myth or once in a blue moon thing so above applies in almost all cases.
- Visa office would not be proactive about this. You have to push politely for it.
- I have seen a case where a visa office was proactive about it but that is again once in a blue moon thing.