Tried the treadmill yesterday (walking at a good pace, 2.7 mph) for the first time and I felt like I was gonna puke after a few minutes. I toughed it out for a total of 10 mins and that was enough, I was done; I thought the feeling would pass but it never did, felt sick the rest of the day.
I can run, speed-walk, ride a stationary bike, and mountain bike without any problems.
I won’t be trying it again anytime soon, just wondering if anyone else experienced this kind of sensation? And why it might have happened?