 [ Symptoms ] my child wants to eat constanly and is on concerta for adha dont know if symptom or eating disorder she use to have curbed appetite being on the medicine but now eats non stop gorges herself and thinks she is hungry non stop [ Disease ] sickle cell trait is a genetic disorder that occurs when a child inherits one sickle cell gene from a parent if a child inherits two sickle cell genes one from each parent then that child will have sickle cell disease so to answer your question if your son has been diagnosed with sickle cell trait then he had to have inherited a sickle cell gene from one of his parents if you his mother know positively you do not have sickle cell trait which is diagnosed by blood test then your son must have received the gene from his father sickle cell trait may never produce symptoms so you should not assume you do not have it unless you have been tested for it your son needs to be aware that he can pass along this sickle cell gene to his own child if the child is mother also has sickle cell trait or sickle cell disease the child can be born with sickle cell disease hope this helps