Haha, first of all... Beautiful shots.
Second first of all:
I find running much more boring and painful(knees mostly) than cycling (not the one in gym, ofc). And in the last few years whenever I tried running I had to abandon it due to pain and suffering either hitting just after 30 mins or so... and then limping back home (even tho I always have a proper warm-up and stretch routines). Who knows what I have... :)

I would rather choose flexible than a stiff and tensed sleeve, every day! :)

Bad news and beautiful photos :) take care and appreciate your body, we have only one (for now) and we'll need it in the distant future too. Hope you find some substitute activity to running that you actually enjoy.

Cheers :)