Hi Mark,
When you say the room was spinning, it does sound like ear. I have had dizzy feelings at times in my life but the spinning is so very different. When I get the spinning, I am unable to function until it stops. Then I go to my ear doctor who does an Epley’s Maneuver and I will not have spinning for a couple of years. It is a very simple thing the doctor does to move the crystals back in place in your inner ear. I’m not saying that is what it is but if so, it is like a miracle. I had this long before I was diagnosed with MDS and doctors diagnosed it as all kinds of things. It ended with a great ear doc. Good luck to you.