Neurological & Developmental Conditions
The nervous system does not operate in isolation. When the immune system is dysregulated, when the gut is damaged, when the mitochondria are misfiring — the nervous system feels it too. The conditions in this section show up as brain fog, crashes, pain that doesn't map cleanly to an injury, a heart rate that responds to gravity like a broken sensor. They overlap heavily with ME/CFS, Hashimoto's thyroiditis, and mast cell activation syndrome. They are frequently diagnosed late, frequently misdiagnosed first, and frequently dismissed entirely. This section covers three of the most common neurological and developmental conditions found in the broken-battery population — what they are, what the workup looks like, and what ruled them in or out during my own diagnostic loop.
ADD / ADHD
Attention deficit disorder and attention deficit hyperactivity disorder are dopamine regulation problems, not discipline problems. Executive function, task initiation, time blindness, emotional dysregulation — these are not character flaws. They are documented neurological patterns with documented mechanisms. In adults, ADHD is frequently missed or misdiagnosed entirely — especially in women, and especially when it presents without the hyperactive component. Brain fog from ME/CFS, celiac, and HFI can mimic ADHD symptoms closely enough that untangling them requires careful elimination of metabolic causes first. I researched this one thoroughly during the diagnostic loop. The profile didn't fit mine — but if it fits yours, this page gives you what to bring to the conversation.
Fibromyalgia
Fibromyalgia is widespread musculoskeletal pain, sleep disruption, fatigue, and cognitive difficulty — and it overlaps so significantly with ME/CFS and Hashimoto's thyroiditis that separating them requires a careful differential, not a quick label. Central sensitization is the documented mechanism — the nervous system's pain volume is turned up, not because the signal is fake, but because the amplifier is broken. Fibromyalgia is a real condition. It is also one of the most common landing spots for patients who haven't yet found the upstream cause. I looked at this one hard during the diagnostic loop. The presentation didn't fit cleanly — but the overlap with what I do have is significant enough that this page belongs here.
POTS / Dysautonomia
POTS — postural orthostatic tachycardia syndrome — is what happens when the autonomic nervous system fails to regulate heart rate and blood pressure correctly when you stand up. The heart races. The blood pressure drops. The room swims. It is not anxiety. It is not deconditioning. It is a documented dysregulation of the system that runs your heart rate, your digestion, your circulation, and your temperature without you having to think about it. POTS frequently clusters with mast cell activation syndrome and hypermobile Ehlers-Danlos syndrome — the MCAS/POTS/hEDS triad — and overlaps significantly with ME/CFS. The tilt table test is the ask-by-name diagnostic tool. This page covers what the workup looks like and where it sits in the broken-battery picture.