*UPDATE*

I saw my GI doctor yesterday. He took me off the diuretics and the iron supplements. He wants to run a celiac sprue screening (which I'll do Monday morning) and will set up an appointment with a hepatologist at Tulane Medical Center. He also said that I can control my condition with diet for years, if not indefinitely, so that's good. Also, no restrictions on exercise except overexertion, stay out of the hottest part of the day, etc.

Overall, I'm feeling better. My body is starting to adapt to the beta-blockers and the lower blood pressure that comes with it. I'll hopefully start riding again, albeit slow and easy at first, within the next week.

Stay safe out there.