Ay iba-iba talaga ang pregnancy symptoms, mama! A few of my mum friends had the same experience, walang morning sickness first trimester tapos biglang dumating second trimester, so hindi rin nila inexpect. Pero since naging bagong symptom yan for you, mas safe na check with your OB just to rule out anything else like acid reflux or pregnancy-related stuff, because second trimester nausea isn't super common but it happens sa iba. Kailan mo na consult with your doctor? Praying it's just normal pregnancy weirdness for you, mama!