thanks for the reply! I have no clue. I’ve tried to trace it with different things that would come and go in my life like seasons of depression, swelling of my lymph nodes (specifically back of neck), intense stress, etc. but nothing is consistently causing it. Now that I’m older it happens a LOT less, but it began in high school.

it’s almost always a sweet cigarette smoke smell, it only changed for a period of a couple months one times