Positive update for once. Just got back from the doctor (GP). Blood pressure is under control with current meds. As far as breathing goes, last time I biked there it took a bit over 15 minutes, and I was wheezing when I got there. Today, it took 10 minutes and I was breathing fine.
His theory on why my ankles keep swelling is sodium intake. Which sounds hinky to me, but I can use the motivation to cut out salt anyway. I go back in a month to see how the ankles are doing.
All in all, I'm feeling somewhat positive for once.