Hello, Thanks for trusting Healthcaremagic! I have gone through your query and I can understand your concerns. Pics is a kind of eating disorder. It could be due to many causes ranging from iron ddeficiency to minor psychiatric illness like depression. A detailed evaluation is needed to find out the possible reason for your problem. Since you are eating lead pencils, it could lead to lead poisoning which is a serious condition. I ssuggest you to consult a psychiatrist for detailed evaluation and proper ttreatment. A complete blood count and peripheral smear may be needed to rule out iron deficiency anemia. Cognitive behavioral therapy is highly effective in these cases. Very rarely drugs like aantidepressants may be needed. Most of the cases improve with timely treatment. Wishing you good health. Regards. Dr.Shinas Hussain