Sakit belakang and perut mcm tu memang common at 32 weeks, especially if you're carrying lower or your posture berubah, a few of my mum friends complained the same thing! But since the pain sampai tulang belakang and you kena angkat perut to feel better, better check with your doc or midwife just to rule out anything, k? Glad the maternity belt helps, that's a good sign it's mostly posture and ligament stretching, tapi professional opinion is safer lah to confirm, especially since your first pregnancy tak macam ni. In the meantime, try pelvic tilts, pillow support when you lie down, and jangan terlalu lama standing, rest is your friend now!