welcome to HCM!
You are suffering from Pica
.Pica is characterized by an appetite for substances largely non-nutritive.
There is no single test that confirms pica. However, because pica can occur in people who have lower than normal nutrient levels , you should test blood levels of iron and zinc. Hemoglobin
can also be checked to test for anemia
along with parasitic infection
This is a common condition and gets corrected as soon the deficiency is corrected!
Hope this helps!Take care!