Little Cubby test results

Little Cubby had his 9 month check-up on Monday and the doctor was concerned about his lips being pale so he ordered a blood test to check his iron levels. The doctor called with the results and on the scale the lowest you can go and be normal is 11. Little Cubby is 10.3 so he is a little anemic. I have to give him a iron supplement called Fer-In-Sol. I am little worried about it. He is my baby and it seems everytime we go to the doctor there is a concern with him. I hate going to the doctor. Little Cubby is healthy. He is crawling around with great speed and is pulling himself up on the furniture. As a mother, I can not help worrying about him.