I also have extreme fatigue, I was trying to find the right words to describe it earlier today, absolutely exhausted, even after 8 hours of sleep with PAP machine and Rx meds, still trying to recover from rearranging furniture and cleaning for the past couple of days. I came up with the phrase this morning: "mitochondrially-impaired"... I just don't have the juice anywhere in my body, I think what they call "lactate threshold"...mine is impaired to where I need three days to recover from 1 day of normal household chores.
I have a mitral valve prolapse, (which I'm finding is common in tbd-sufferers) not sure if that is/was the same as when I got a sports physical to play team sports as a teenager and the physician said I had a heart murmur, so maybe I've had some deeper infections for much longer than I had originally thought...
As for other heart complications related to Lyme n Cos...the more serious things are heart-block, arrhythmias, tachychardia and carditis which can be checked with various tests following a cardiologist visit.
Which to some extent, many of us do have some of this, if you have POTS, you may have some form of dysautonomia causing fast heart rate from when changing position to and from laying down and standing up...
Having said that, if you have heart pains make sure they are not costochondritis (chest wall pain) first, which is a common CFS/ME/Fibromyalgia (Lyme n Cos!!) symptom, the more serious things are if you get carditis or heart block (which is not unheard of and can be fatal, one Duke MD and avid runner had to have a heart transplant, another very young person died after an acute tick born infection-related carditis, don't have the links but you can google them easily...).
Lastly, borreliae bacteria and co-infections can affect every system of the body! so yes that includes heart and brain, which is why some LLMDs go immediately to IV-abx if/when there is heart involvement.
Post Edited (borrelioburgdorferii) : 5/5/2020 2:21:39 PM (GMT-6)