Conditions & symptoms
Conditions and symptoms
Digestive symptoms overlap, and the common causes are not always the actual ones. These pages explain the conditions Dr Zeki treats most often — what they feel like, how they are properly diagnosed, and how they are treated.
Acid reflux & heartburn
From occasional heartburn to reflux disease that resists medication.
Read more →Barrett's oesophagus
Surveillance and treatment of reflux‑related change in the oesophageal lining.
Read more →Eosinophilic oesophagitis
The allergic oesophageal condition behind many cases of food impaction.
Read more →Food allergies & intolerance
Separating true allergy from intolerance — and treating both properly.
Read more →Gastrointestinal cancer
Alarm symptoms, rapid diagnosis and endoscopic treatment of early cancers.
Read more →Endoscopy & reflux testing
The tests themselves: gastroscopy, colonoscopy, BRAVO, pH‑impedance, manometry.
Read more →