Just for anyone who may not be aware, there is an "in between" option - not free like the health service clinics, but you can avoid the awkwardness and expense of going to a GP by using https://www.stigmahealth.com/ - for $20-$39 (depending on your age etc), you get a pathology referral that you can then take to any local pathology clinic, and they will do all the tests (covered by medicare 100%). You get the results via a secure app on your phone - handy in case you ever need to show anyone in a hurry! :-)