Thank you for your reply.
It appears that you could have disseminated/systemic
fungemia infection of the intestine (including the stomach) and the nails (with onychauxis and onycholysis). The gastritis could be caused by this system fungus infection and therefore predispose you to increase acid production with meals and/or stimulation of the neuroendocrine secretory gland of the intestine, hence contributing to your symptoms of headache, blurred vision and indigestion. There have been cases of disseminated fungus infections associated with nail and gastrointestinal infections in the same patient.
I would suggest that your doctors biopsy and analyzed the small intestinal lesions for fungus. This investigation should also include fungus culture of your nail beds. In the meantime, I suggest that your doctor start you on system anti-fungus such as amphotericin B or voriconazole. For gastritis and ingestion, prilosec or any other acid-pump inhibitor would likely benefit you. Please, feel free to share this information with your doctor.
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