Talk to Gastroenterologist on Gastroenterologist

Aoa Dr i have extreme hair fall since 2 months , dermatologist suggest me cbc , serum ferritin , and serum iron ,

Test results: cbc showed 12.3 hemoglobin which was 13.9 before 2 months ago, Serum ferritin 5.3 Serum iron 37 ,

Q: What is the cause of low levels?

Symptoms: I have extreme fatigue , heart palpitations, weakness , sudden abnormal heart rates, headaches , weight loss , extreme hair fall, also have some abdominal issues persistent diarrheao ,abdominal pain , chronic gerd , and gas ,