Thank you for sharing these studies and comparisons betweens Long Covid and ME/CFS - it's been very helpful for me! I'm still a Long Covid patient (since March 2020) and I'm being tested for POTS. Last week (11 months after first having Covid) and they've found fluid around my heart and an obstruction in my lungs which they think are mini blood clots but they're not sure. I finally have a diagnosis at long last. I look forward to reading more of your work. Thank you again.