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Functional Medicine Testing

Mold Exposure and Chronic Fatigue: When It's Worth Testing

Rain and condensation on a window pane

Mold illness occupies a strange spot in medicine. Online, it's blamed for everything. In many clinics, it's barely considered. The truth we work from: mold exposure is a real and testable contributor to chronic symptoms in some people, and it's neither the universal explanation nor a fantasy.

Why mold gets missed

Mycotoxins, the compounds certain molds produce, cause symptoms with no obvious signature: fatigue, brain fog, headaches, sinus congestion that never fully clears, unusual chemical sensitivities, and immune complaints that come and go. Every one of those has a dozen other possible causes, so standard workups rarely reach for mold. And the exposure itself often isn't obvious: a slow leak behind a wall, a damp basement, a previous home or workplace.

Clues that raise the question

  • Symptoms that started or worsened after moving to a new home, or after known water damage
  • Feeling noticeably better away from home, on vacations, and worse on return
  • Household members developing overlapping vague symptoms
  • A history of visible mold or musty smell anywhere you spend hours daily
  • Chronic fatigue that thorough conventional workups keep failing to explain

How testing works

The MycoTOX panel screens a urine sample, collected at home, for mycotoxins that your body is carrying and eliminating. It's part of our functional testing lineup alongside the DUTCH hormone panel, GI-MAP, and OAT, and we often pair it with those, because chronic fatigue rarely has exactly one cause.

Results come back as specific mycotoxin levels, which we review together over telemedicine.

If it comes back positive: treatment is a two-front conversation, supporting your body's clearance and fixing the exposure source. No protocol outruns a moldy wall.

The honest boundaries

We'll be direct about what this testing can and can't do. It shows what your body is carrying; it can't prove a specific building caused a specific symptom. Some practitioners oversell that certainty. What it offers is a data point that either moves mold up your suspect list or crosses it off, and when you've been exhausted without answers for years, either direction is progress.

Fatigue that no panel has explained?

A consult sorts out which testing your history actually calls for, mold-related or otherwise.

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