Thanks again for all your supportive replies.

I'm happy to report that I saw my family doctor this morning and she told me that the results of my 24-Holter monitoring were "unremarkable". That means I should be able to continue taking Parnate (even increasing the dose if necessary) until my psychiatrist can come up with a viable alternative.

Despite my continuing need for frequent rest periods throughout the day, my family doctor told me that I'm probably just overdoing things. That's a bit difficult for me to believe given how little I actually manage to accomplish these days.

In any case, my main point was to share GOOD news. Now I'll go have my nap.