Can't say I've ever experienced spinning or something uncontrolled like that in a dream, they try to be "realistic" when it comes to that dream's universe. Of course dream logic is still present and all which makes for weird things.
Anyways, you could always be having some intrusive thoughts and shit. It happens. When you're confused about something, you can just say you're not really sure what was being said and don't think too much about it until you learn to filter out that kind of thoughts.