I smelled cigarette smoke and was immediately gagging. So I wonder if this is really it. :)

I had nausea every time I step foot in warm water until I found out which was 5 weeks

I am around implantation time and have been nauseous all day long. Never experienced it with my first. But I googled it, and I guess it really can happen! So many things happen around implantation that I never knew about, lol.

Just didn't really realize why at the time!

Yes