I was similar to you (maybe not to that extreme) and I don't see zinc mentioned in this post. I did have a minimal sense of smell, as in I could faintly smell

I was similar to you (maybe not to that extreme) and I don't see zinc mentioned in this post. I did have a minimal sense of smell, as in I could faintly smell perfumes if I sprayed it on my nose but often not animal feces or similar. I started supplementing zinc because I suspected I was deficient in it and in about two weeks of taking 25-40mg per day (be careful, 40mg is the upper limit) I started smelling things properly. It got to a point now after a few years that I can tell what happened in a room in the previous 30 mins when I step in. There are upsides (smelling the sea) and downsides (dirty humans are truly something) but I love every minute of it.