Not being funny but I'm vaccinated, with AZ, I done it the other way round. I had a pulmonary embolsym in my early 40s (at some previous point), and I blacked out at work and was carted out where they studied me and found the cause . Not Covid though , I'll probably never find out.Until they come up with anything better and ask us to use that instead of or as well as then I will carry on using that, it isn't a problem and it only takes a few minutes and with so many people who ignored all the rules when they were in place and all those who for some reason still refuse to think of others and have the vaccine, then the more sensible and responsible and unselfish amongst don't seem to find it that hard to do the right thing like some others do.
The pack I ordered online before my last one did come with a PCR test as well and a request to do the lateral flow test and the PCR test on the same day and to return that for testing via one of the special priority postboxes so that they can check the accuracy of the quick tests.
Walking about in a state of hypoxia, doctor saw it straight away.
It made me think of infection vectors and detection methods. Especially if I'm daft enough to ignore some I've had.