I still have most of my basic tastes eg sweet, sour, salty etc, just not the smell but that is what makes the subtle flavours…weird somethings I just cannot eat anymore as texture horrid, like pizza. Yes you missed out with some delightful French and Austrian foods! I belong to a Long Covid forum run by an anaesthetist ( Robert Grosman) who performs the SG block (and has provided lots of detail in posts exactly how it should be done), I thought it was a more invasive procedure than just an injection…but even that procedure seems to have a varying success rate: no difference to noticeable for say 6 weeks to almost a cure. But like you I would wonder if the same person is performing the injection 5 times without success why would a 6th make any difference, less he/she meanwhile has done more homework and knows to for eg alter the angle of it?