Take a sicky and/or consult your DAME
If:
(a) the holder of a class 1 medical certificate and a licence:
(i) knows that he or she has a medically significant condition;
and
(ii) is reckless as to whether the condition has been disclosed
to CASA; and
(b) the condition continues for longer than 7 days; and
(c) the condition has the result that his or her ability to do an act
authorised by the licence is impaired;
he or she must tell CASA or a DAME about the condition as soon as
practicable after the end of the 7 days. (CASR PART 67)