I do get dizzy, but that usually means I've gone too long in one direction or without asking the hrose to stop or make some kind of change. Using a round pen is not about making your horse go round and round endlessly.
Thanks for the suggestions. I had my 6yr old QH on a long lead rope out in the open and just had him making short circles around me to make him work when he refused to follow. I could feel it coming on after just a couple of rounds and remembered how easily I get dizzy from spinning.
I will put into effect each of the suggestions to see what works for me...Again, thank you very much..