I run on treadmill (I like the discipline of having to keep the speed going), and I am fine all the way through until the cooldown when I start to feel a bit dizzy/faint/queezy. It is like seasickness. I don't get it when I run outside, and think it's my head trying to equate the lack of moving surroundings to the obvious movement I am doing.
Only way I have found round it is to do the 5 min cooldown, then really slowly decrease the speed, eventually stopping and clinging to the frame until the earth stops spinning...if I need to get off the treadmill halfway through for whatever reason I genuinely feel like I am going to puke. It takes about 10 minutes at the end of the run for me to be able to leave the treadmill.
Anyone else get this? Anyone know how to stop it or make it less naff?