Ay sis, ang hirap talaga ng third trimester! Yung tigas na yan ay mostly Braxton Hicks contractions, practice contractions lang, pero dahil ganitong advanced ka na ng pregnancy, normal na sila matagal at madalas na. A few of us moms namin noticed it gets intense especially gabi, tapos nakakapagod ng katawan kaya parang tumatagal ang sensation. But honestly, 36 weeks ka na at may persistent pain pa, better check with your OB kasi dapat malaman ninyo kung just Braxton Hicks lang talaga or if there's something else happening, hindi rin basta sakit yan na dapat pa-ignore, lalo na malapit na ang due date mo! Hang in there, konti lang til birth day mo.