Exercise problem/concern

[AdamGB]

Mick I think some of the issue is the inertia from the treadmill. I always have a sensation of still moving when I get off after a good run.

Yeah, just said the very same thing in the training section, obviously don't want to say 100% it's nothing else but that is the most likely case.

Seen it happen to loads of newbies when I worked in the gyms and subsequently warned people I've warned my clients and taught them how to slow down and collect themselve's before getting off the treadmill.

All the signs point to it, the Epiletical and Stair Master don't create the impression that your body is moving, it only happened when he got off the treadmill, was heavy for 20-30 seconds and left mild dizziness.
I'd ran for years for boxing, ran half marathons and did ridiculous sets of sprints, was very well conditioned for running ,yet I'd never been on a treadmill. Working the gyms I obviously wanted to familiarise myself with what I'd be working with and even though I got warned I was still dizzy getting off it. I used to demostrate how to use it so many times a day though that I could just hop on and off it when it was still working and be fine.