Uy, mama, please see your OB agad or go to the nearest health center to check this out, morning sickness is common, pero importante malaman nila kung normal lang or may something else going on, lalo na kaya mo pa kumain and stay hydrated. A few of my mum friends had different experiences sa unang linggo, some were super sick, iba hindi, kaya talaga need ma-assess ng doctor mo personally. Hang in there, and don't hesitate to call if you feel worse!