Aduh, batuk kahak malam memang pelik kan, apatah lagi sampai kejang perut, kesian dia! A few of us notice our kids get worse batuk at night sebab diorang lie down, so the phlegm moves around more and triggers the cough. Best thing is to elevate the head with extra pillows, bagi dia minum air hangat or honey if dia dah older (helps loosen the phlegm), and try paracetamol or ibuprofen for the aches, tapi honestly kalau persistent macam ni, better check with your doctor or pediatrician to make sure it's not something that needs antibiotics or proper cough syrup.