Alamak, tension you must be feeling! At 36 weeks, Braxton Hicks (false contractions) mmg sangat common, especially kalau perut keras-keras but no other signs, a few of my mum friends had the same thing and turned out just practice contractions je. Tapi since you're having persistent pain from your back to lower belly, better check with your doctor or midwife just to be safe, okay? They can do a quick check to make sure everything's okay and confirm it's just Braxton Hicks, not something else. In the meantime, try drinking plenty of water, rest, maybe try different positions, sometimes it helps settle things down! You're almost there, mama!