Ay oo normal lang yan, mama! Newborns cry nang bigla-bigla kasi yan lang ang paraan nila mag-communicate, could be hungry, uncomfortable, may gas, or just need comfort. A few of us sa mommy group namin, palagi kaming nag-aalala sa unang buwan, pero realized lang na checking the basics helps: puno na ba ang diaper, kumain na ba recently, comfortable ba sa temperature, o maybe need lang i-burp talaga? Pero kung parang unusual ang cry pattern niya or malaki ang concern mo sa behavior, best to mention it sa doctor just para mapakali ka lang at ma-rule out kung may issue physically. You're doing great, don't stress too much!