Wow. This is very interesting. I have had some residual smell/taste issues since I had Covid in October 2021. Was attempting to use autophogy as a tool to clean up these loose ends, so I have fasted a bit since end of December. All of a sudden about two/three weeks ago, my sense of smell went bonkers, and I think it may have been around the time I did a three day fast after having recently done a two day and some 20:4 IF. I haven't been able to figure out what triggered this, but now I have to wonder if it is related. This is going to take some sorting and processing.