Sayang, giddy and back pain boleh jadi normal especially during pregnancy or postpartum, tapi kena check with your doctor to make sure nothing serious, okay? A few of my mum friends ada juga experience ni dan turned out dehydration or posture issues jer, but better safe than sorry, especially if it's persistent or getting worse. Drink plenty of water, try to rest when you can, and make sure your doctor knows. You're not alone in this, tapi do get it checked out just to be on the safe side!