Why Does My Baby Refuse to Sleep and Keep Crying?

My baby is two months old, sleeps very little during the day, and doesn’t sleep well during the late night hours. Around 3 a.m., they start to twist their bodies and cry, about every two to three minutes. Although we have checked for trace elements, the results show no deficiencies. However, since two days ago, their stool has become dark green, sometimes with a little yellow, and they have a bowel movement every two days. Currently, they are on mixed feeding. I want to know what’s going on with this situation?
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