Addiction to certain smell

During my 1st and 2nd trimester, I was so sensitive to smell. Couldn't take the smell of food being cooked. Everything makes me nauseous. I cant stand the smell of soap, my husband after he showered, and about everything that smell good or bad. So now I'm in my 3rd trimester and I cant help it, but just want to smell wet dirt, oxycleaner powder, irish spring bar soap and old basement. That's insane!! I know oxycleaner is bad for me, but I cant help it!