<s>[INST] I just had a bone marrow biopsy. They did this because when doing a cbc they found that my myloid cells were small. Other than CML is there anything that can cause them to be small. A little history I have been anemic and on iron most of my adult life. My iron count was 2 and my HB was 7. I was given 2 units of blood and iron iv. My b-12 was also low but i dont kow that number. I am tired often but work 12 hour days and have contributed my fatigue to that. Since i recived the blood and iron i feel as if i have a cold. I am sore and ache and tired. I am suposed to go back to work tomorrow. What do you think? I guess there are 2 questions in there [/INST] Hello and welcome to Chat Doctor, Low hemoglobin level is often associated with fatigue and tiredness. A hemoglobin level of 7 has to be managed by blood transfusion as well as iron supplements. Presence of small sized myeloid cells is not characteristic of CML.CML is characterized by increased white blood cell count, increased number of precursor myeloid cells. Constitutional features of fever, fatigue, enlarged spleen are also present. Since, the cause of anemia is iron deficiency, you are advised to take iron supplements for at least 3 months and then get blood iron levels re-checked. Thanks and take care Chat Doctor.  </s>