@yuki_00 the case officer won’t be in touch until after a few months to issue you s56 letter which is a checklist of documents you need to provide and you will be given 28 days to provide the documents being requested, that includes the medical clearance. If within that 28 days, you still can’t provide the documents, you can advise the case officer you need more time due to your reason. Better do this approach than miss the 60 day period given to lodge your application. Good luck