You should get that looked at...sounds terrible :grin:. I was telling my wife tonight that we need a winter home in Florida or someplace around the equator...she does not share my enthusiasm for humidity.
I smoke under my house kinda. In our garage. And yes the smell does drift up. Me and my father try to close both doors to the garage so it doesn't flow to different parts of the basement and we crack the garage door.
But some of the odor still works its way up through small holes in the ceiling for piping and other things.