Aiyooo sayang, I had the same thing in my second trimester and it was so frustrating, morning sickness should improve by then kan, but it happens to some of us! A few of my mum friends had similar nausea and headaches in their second trimester too, so you're definitely not alone. For the nausea, try eating something small like crackers or a banana the moment you wake up (don't get up too fast), stay hydrated throughout the day, and make sure you're getting enough rest, kena try ginger tea or ginger sweets jugak, memang helps. The headaches bisa jadi dehydration or hormones still playing up, so drink plenty of water and if possible rest in a cool, dark room when it hits. I'd say check in with your doctor about this during your next visit just to make sure everything's okay, especially if the symptoms are quite intense or affecting your daily life, takde salah being on the safe side!