We NEVER called it that when I was young but thats what google comes up with! I used to get it a lot after a day on a boat. DH and I on holiday and couple of hours after end of the boat trip today, I have the same rocking sensation but I cannot for the life of me think of what we used to call it...
Sea legs? The sways? Land legs? Boat brain? There's some common name for it I'm sure, please mumsnet hivemind
Please help! Grew up in South East if that helps at all...