ok, how's this for paranoia!

Due to have booster on Monday 20th, 6 months after 2 x AZ. I 'think' it will be Moderna. I am also due to have a PCR fit to fly test on the 28th, for my (hopefully 5th time lucky) trip down to SA.

I am really worried now that the booster may affect the result of the PCR (i.e. it will be +). Am I being paranoid and illogical?

Of course I am also convinced I have covid, despite WFH for weeks, not going out socialising, and my only trips out is to the supermarket! Not sure my nerves can take much more of this!