My weird "paranormal" quirk is knowing when someone is sick by smell. My nose is usually blocked up and I can barely smell flowers but for some reason I can just tell when someone is incubating some sickness that will make them bedridden the next day.

No idea how it works. I just smell "sick" - it's kind of this warm earthy ground smell. I can even smell it on myself sometimes and I'll know I need to take a day off tomorrow. My theory is I can smell something off in the skin temperature.

Some of my family can smell spiders

This thread makes me glad Im bad with regular smells, let alone ant pheromones and shit like that. Downside is I cant tune out sounds, I always hear everything full blast

I used to be able to smell spiders when I was a kid. The spider web, to be exact. It has a quite specific but not unpleasant smell to it.