<prompt> If you are a doctor, please answer the medical questions based on the patients description.My toddler has been co lower back pain for a couple of weeks now, as well as leg and arm pain. Also, today we noticed she has a lazy eye...probably unrelated but my mind is going crazy with all sorts of worries about brainspine tumours...should I be worried or just keep an eye on her?  <response>: Hi, brain or spinal tumors will have a different presentation headache, vomiting, weakness of facelimbs, seizure, visual disturbances. Back pain, leg pain and arm pains in toddlers may be a manifestation of calcium or vitamin D deficiency. If the symptoms are bothering, we can get a serum calcium and vitamin D level done. A blood count with ESR will rule out associated anemia and chronic inflammationalthough less likely here. Kindly discuss with your pediatricianMeanwhile, give him a healthy diet rich in fruits and green leafy vegetables. These will supply enough minerals and micro-nutrients needed for rapid growth in this age. Hope I have answered your question. Let me know if I can assist you further. 