Mama, ang swelling ng paa at ang cramping na yan ay super common sa 38 weeks, kaya ka naman ng dami ng friends ko na naka-experience ng same thing! But yung combination ng belly pain, lower back pain, at yung feeling na kailangan mong mag-poop kahit wala talagang output, that's something I'd really suggest you bring up sa OB mo, lalo na kaya malapit na due date mo, just to make sure everything's okay and it's not something that needs checking. Pwede ring practice contractions lang yan (Braxton Hicks) but better safe than sorry, tsaka ang OB mo ang magkukuha ng clarity kung normal lang yan or may kailangan nang i-monitor, yun, mama!