Ignore the change in CTL. You’re changing sports. Your CTL up to that change was cycling-specific. It’s way easier to build up a lot of cycling volume because of the lack of impact. A cycling CTL of X isn’t relevant nor the same as a running CTL of X.
If all of your training is now weight-bearing, then you’ll have your new, more-relevant CTL.
I feel “worked” but in no way stressed by current volume.
What do you mean by this? “Worked” sounds like physical stress to me.