Flyer,
Sounds like everything is progressing normally, if not actually a little bit ahead of schedule!
That's certainly great news! You should start noticing steady improvement.
With the mucous thing, that seems to vary for folks. Some here report they hardly have any. I'm three years out and still seem to have a lot. Sometimes, my urine is like maple syrup and it sinks to the bottom of the toilet water. Sometimes it is just in the beginning (that settling thing you mentioned) and then it is more like normal urine after the thick stuff drains.
Very infrequently, I get some of that egg drop soup looking stuff that seems to be more of what most folks on the site here report.
Keep up the training. Looks like you are doing the right thing. Keep up that walking and you will be surprised at how soon you start feeling better. Takes months to feel back to 100% but depending on your job, you may be just fine for that in a few weeks. As long as you aren't a marathon runner or professional athlete that is.
Mike