So you don't think it just may have been scary? Kids get scared early on, but being able to imagine what other people are feeling, and therefore feeling that too (empathy) comes later
This is ridiculous, I hardly ever make tomato sauce with (added) sugar and it tastes delicious. I suppose if you're used to sugar being in everything it may taste odd, but it is far from horrendous
Could be a dust allergy (or rather the poo of dust mite), you could try changing your sheets more often, and vacuuming more, and especially vacuuming the headboard of your bed, even more imporantly if it's fabric. I have found my throat closes up if I haven't vacuumed the headboard in a long time. Once I do, my throat goes right back to normal :)
Hope this helps!
I do it initially so my wet hair doesn't drip everywhere