Jeannine,
Is it possible for you to bring your own stool to sit on that might be more comfortable, such as one with a back to lean on and that has rungs on it that you can rest your feet on..i feel for you as your feet dangle from the stool and then the burn starts!! I know how that is , as it happens to me as well, sitting at the desk ....and then getting up and down for different tasks..Oh,man, the burn is the worst...need little firetrucks and mini-firemen in the feet and legs to dowse that burn!! Maybe you can do that on-line course for medical billing....I know it's exhausting to work with RSD and then you wonder what energy would be left for the on-line course...but, maybe if you pace ourself and do one class at a time, maybe you could do it!! I have visions of you in your comfy clothes and fluffy slippers working from home!!!
Hey, I might try the same strategy!!

Miller Prof !!
How did you heal from the RSD after 18 months? It's grat that you were able to continue teaching throughout your ordeal and have all the responsibility that teaching entails!! Can you share what some of your treatment was and what it is that you think helped you most in overecoming the dreaded RSD?

Take good care,
Hope4thebest xo