Aww sayang, this sounds really uncomfortable lah especially when you're trying to rest! Perut kembung and heartburn macam ni memang common dalam pregnancy, tapi since it's been bothering you for a few weeks, better check with your doctor to make sure it's nothing else and get some safe relief options, pregnancy heartburn boleh manage with the right approach. A few of us mums found that eating smaller meals throughout the day instead of bigger ones, avoiding heavy foods close to bedtime, and sleeping with extra pillows to prop yourself up helps quite a bit. Also try to identify if certain foods trigger it worse (sometimes dairy, spicy, or oily stuff jadi culprit). Hang in there, hopefully once doc gives the all-clear, you can find something that helps you sleep better!