There’s this thing called PEM — Post-Exertional Malaise. Fancy medical term for you only have so much energy and if you overspend, you’ll regret it for days. For me, PEM is the defining symptom of the ME/CFS that shadows my other diagnoses — the POTS, EDS, and MCAS that are all constantly fighting for control over my system. But frankly, most doctors treat it like a suggestion rather than a biological wall. How It Works For Me I have a teeny-tiny finite amount of energy every single day. We’re talking a strict, non-negotiable budget that does not roll over, does not accept credit, and absolutely does not care about your plans. Every single thing I do costs something. And when the budget runs out —…