I really am pathetically unfit, and only managed a 10 minute run
By the end of it my throat felt like it was on fire...awful ragged pain. I tried breathing through my nose, but that didn't help (just made my nose hurt).
Having a glass of water afterwards helped, but I don;t really want to carry water round with me.
I think I'm lergic to running. I should give it up, shouldn't I?