I went for a run this evening out on the moors. There's a triangle of road that is exactly a mile round so it's easy to assess how (un)fit I am.
I hit the MS wall at one mile. Uhthoff not far behind - my eyes starting to play tricks. I just couldn't lift my feet at all.
Next time I go out, I will aim for two miles.
Two years ago, I was going out for two five mile runs every week, involving hill climbs, the lot. I also wondered why I couldn't see properly as I was running or why my leg was going numb in the shower afterwards.
I feel surprisingly un-fatigued now and it's quite late. Just sitting in my tingly cloud. Must try to go out again before my personal trainer comes on Thursday.