Dysautonomia, how do I heart thee?

Apparently not all that much since my heart rate hasn't made it to 50 in the better part of 12 hours. Even though I'm tired, it's not a horribly dragging or sluggish tired. Mostly I just feel like my heart weighs ten tons (persistently low heart rate leads to turbulence...can you actually feel turbulence in your cardiovascular system...?) every time it beats. That's the part that's exhausting.

So, while I wanted to stay out here and work on moving some PDFs to the Kindle, I think that's gonna have to wait. Time for bed, time for horizontal, time for a lot less heavy thudding in my chest.