I wasn’t aware of ME (had no idea such a disease even existed) for the first 6 years or so after coming down with it, so I obviously didn’t know anything about concepts such as PEM etc. OI has been part of my PEM since the very beginning, but I obviously didn’t recognise it at the time.
I used to think that I was just having a sore throat unusually often, frequent head colds and weird DOMS (delayed onset muscle soreness) from exercising. I also used to have a “legs and muscles made of cement” kind of feeling at the very start of every practice/exercise session (unless there had been more than a week or so between the sessions).
I was often feeling very cold even in warm places, wearing much warmer clothes than others in the same environment, and I even had to put a space heater under my desk at work and wear fingerless mitts because my fingers would get so cold in the afternoons after a long day’s work. And I used to sit crosslegged in the chair at the office, because I felt that my thinking, concentration and creativity improved if I didn’t have my feet on the floor.
As it got worse I started getting IBS like symptoms too after overexertion. Also nausea and diarrhea, sometimes throwing up as well — sometimes with no delay but only like 5 minutes in when trying to exercise.
People would tell me I looked extremely pale after exercising. I would feel freezing cold, shivering and shaking.
At one point I did notice that I wasn’t getting any stronger. The progress I had been making previously in my physical practice stopped and reversed, even though I kept exercising. My muscles kept slowly getting weaker while my balance, coordination and my stamina/endurance worsened a lot quicker, and I got winded really easily. I would feel ill, lightheaded and utterly wrung out after practice instead of the usually feelings of being invigorated and full of feel-good hormones. Recovery was getting a lot worse too, would take days or more instead of feeling fine after having a shower and a snack.
My circadian rhythm/internal sleep clock started getting badly affected by overexertion too (similar to delayed sleep phase syndrome), which eventually made it impossible to get to work on time in the mornings.
I’ve always been having
adrenaline surges with my PEM, which at the time made it very difficult for me to make the connection between over-exertion and its consequences. For example, I remember being baffled by (what I at the time believed was) intense DOMS “randomly” setting in 5 days after a physically active weekend workshop, or why I kept feeling worse (repeatedly ”getting the flu”, for example) when taking time off and resting instead of keeping active.
(I didn’t have much cognitive symptoms at the time. They came later.)
When I first read about PEM, I recognised it immediately.