Sayang, at 38 weeks it's normal rasa heaviness dan frequent urination sebab baby dah turun, tapi kalau kencing rasa sakit yang manja-manja macam tu, lebih baik check dengan doctor or midwife you asap, bisa jadi UTI (urinary tract infection) yang perlu treatment, atau ada tekanan dari baby position. A few of my mum friends experience something similar dekat akhir pregnancy, and most turned out just pressure dari bawah, tapi ada jugak yang kena UTI so better safe than sorry lah! Don't wait, call your clinic hari ni, first-time moms boleh rasa paranoid tapi honestly better they check and confirm everything okay daripada you worry terus-terus sampai labour day. You're almost there sayang!