Huh, I will remember that. Having a hot shower helped a lot actually.
I bet it's from your inner ear then. It's not uncommon for a clogged eustachian tube to cause severe vertigo. I had it so bad once that I literally fell over when I stood up from the bed, lol, I can laugh about it now but I had to crawl back. It's crazy how simple "dizziness" sounds until you experience it really bad. It's not like trying to catch your balance on a moving boat, it's more like trying to dodge the floor that keeps jumping at you.

I really hope you feel better soon!