Medical student's apparent celiac disease responded to giardiasis treatment

“Nuclear” Treatment and Gut “Resets”

• Several commenters describe being given broad “kill everything” regimens (multiple antibiotics/antifungals/antiprotozoals).
• Experiences diverge: for some, symptoms resolved dramatically (e.g., years‑long dairy issues disappearing); for others, it was useless or only briefly helpful.
• One theme is that aggressive treatment sometimes acts like a “hard reset” on the gut microbiome, but causality is unclear.

Gluten, FODMAPs, and Non‑Celiac Gluten Sensitivity (NCGS)

• Many report gluten intolerance with negative celiac tests; some later link issues to other causes (lactose, FODMAPs, parasites, thyroid).
• Commenters note that any small bowel inflammation can mimic gluten sensitivity.
• FODMAP content of modern bread and processed foods is highlighted as a major confounder.
• Some suspect many NCGS cases are “gluten aggravating something else,” including infections or dysbiosis.

Medical System, Diagnostics, and Doctor–Patient Tension

• Multiple people describe long, frustrating journeys: IBS labels, psychosomatic hints, antidepressant offers, and resistance to testing for SIBO or parasites.
• Doctors are said to be overwhelmed by internet‑diagnosing patients; they tend to ignore patient theories but value structured data (food/symptom diaries).
• Legal liability and guidelines push physicians toward “standard practice” and away from patient‑driven experiments.

Parasites and Chronic Giardiasis

• Several anecdotes echo the article: travel or bad water, then years of gut issues, then eventual diagnosis of giardia or other parasites.
• Chronic infections are described as easily missed: stool tests can be insensitive, samples degrade, and lab techniques vary.
• A tropical‑medicine specialist who personally examines samples is cited as unusually successful, with criticism of colonoscopy for protozoa detection.

Testing, Treatment, and Self‑Experimentation

• Celiac workup described as antibody blood panels plus small‑intestine biopsy for villous atrophy; blood tests alone can be inconclusive.
• For giardia, people mention antigen stool tests, multiple samples, and in some regions, routine microscopic stool exams.
• Some advocate empirical antiparasitic/antibiotic courses when testing access is poor; others warn about risks and lack of clear guidance.
• Many experiment with elimination diets (low FODMAP, dairy‑free, gluten‑free), digestive enzymes, betaine HCl, probiotics, stress reduction, and various supplements, with highly individual outcomes.

Broader Reflections on Diet and Modern Food

• Strong thread praising “real food” and home cooking vs processed foods; some report complete resolution of GI symptoms after cutting ultra‑processed items.
• Others push back, noting serious intolerances persist even on whole‑food diets and may be tied to antibiotics, pesticides, stress, or histamine issues.