What are the signs of colic an menagitis in a 6 week old babie?

See A Doctor NOW: The two are like apples & oranges. Colic is excessive crying but is benign however Meningitis is a serious & life-threatening infection. Making the distinction between the two in a 6 wk old infant requires examination by a doctor. Symptoms include crying, irritability, decreased appetite, fever. If your baby is crying, see your doctor NOW or go to an ER for correct diagnosis and prompt treatment.

Signs: Meningitis would be fever, irritability, lethargy, poor feeding, vomiting, and bulging of his "soft spot". Colic is typically a baby the cries a lot without another cause (reflux,constipation, infection, formula intolerance)