Orthostatic intolerance, palpitations, brain fog, heat sensitivity, and fatigue reflect autonomic instability. We build a foundation of hydration/electrolytes (Na/K/Mg), compression, pacing, and graded conditioning, then assess methylation stress and oxidative load (Walsh lens) where relevant. Workups often include RBC magnesium, Zn/Cu, homocysteine, glutathione redox, CMP, and vitamin D. Posts also discuss post-viral trajectories and practical detox hygiene while collecting clinician videos and protocols patients can follow step by step.