Two months old baby can't sleep well and wakes up in a while. What's going on?

Two months baby sleep not steady wake up, the possible reasons are the following: 1, may be caused by calcium deficiency or vitamin deficiency, need to take the child to the hospital to check trace elements, and then symptomatic conditioning treatment.2, may be related to environmental factors, such as environmental temperature is too high or too noisy, may show sleep not steady symptoms. 3. It may also be caused by diseases, such as abdominal pain, diarrhea, colds, colds and other diseases, which may cause sleep problems. It needs to be analyzed according to the baby's situation.