Hello. Platonychia can be cause by low serum iron. If you are a female patient and you have heavy menstrual bleeding, that is a possible cause. I you are older than 50, you should have a colonoscopy to be sure you are not loosing blood in your stools. Reflux by itself is not a cause of low serum iron. However, some gastric problems which might cause reflux, as helicobacter pylori infection in your stomach, might be responsible for the low iron.

Hi welcome to Health care magic forum. The problem is defeciency of iron, it may be secondary due to worms like hook worm. mal absorbtio of iron and proteins or lack of iron and proteins in diet. Hook worms take the blood from the intestines and cause anaemia.
besides i advise you to follow some diet recomendations as take more of green leafy vegetables, pulses, sprouts, milk, egg, meat, sea foods, fruits and juices.
Avoid taking spices, chillies, junk foods, and oily foods. Wishing for aquick recovery and thanks for calling. Take bone soup, raw vegetable salads, and vegetable juice to develope good increase in haemoglobin.